Well, let us start with an MWE:
\RequirePackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@Book{Goossens,
author = {Goossens, Michel and Mittelbach, Frank and
Samarin, Alexander},
title = {The LaTeX Companion},
edition = {1},
publisher = {Addison-Wesley},
location = {Reading, Mass.},
year = {1994},
}
@Book{adams,
title = {The Restaurant at the End of the Universe},
author = {Douglas Adams},
series = {The Hitchhiker's Guide to the Galaxy},
publisher = {Pan Macmillan},
year = {1980},
}
@article{kastner1992single,
title = {The single-electron transistor},
author = {Kastner, Marc A},
journal = {Reviews of Modern Physics},
volume = {64},
number = {3},
pages = {849},
year = {1992},
publisher = {APS},
}
@article{flambaum1997distribution,
title ={Distribution of occupation numbers in finite Fermi
systemsand role of interaction in chaos and thermalization},
author ={Flambaum, VV and Izrailev, FM},
journal ={Physical Review E},
volume ={55},
number ={1},
pages ={R13},
year ={1997},
publisher = {APS},
}
\end{filecontents*}
\documentclass[10pt,a4paper]{article}
\usepackage{showframe} % to visualise the typing area and margins
\usepackage{hyperref}
\begin{document}
This is text with \cite{Goossens} and \cite{adams}.
\nocite{*} % to test all bib entrys
\bibliographystyle{unsrt}
\bibliography{\jobname}
\end{document}
That result in the following bbl file:
\begin{thebibliography}{1}
\bibitem{Goossens}
Michel Goossens, Frank Mittelbach, and Alexander Samarin.
\newblock {\em The LaTeX Companion}.
\newblock Addison-Wesley, 1 edition, 1994.
\bibitem{adams}
Douglas Adams.
\newblock {\em The Restaurant at the End of the Universe}.
\newblock The Hitchhiker's Guide to the Galaxy. Pan Macmillan, 1980.
\bibitem{kastner1992single}
Marc~A Kastner.
\newblock The single-electron transistor.
\newblock {\em Reviews of Modern Physics}, 64(3):849, 1992.
\bibitem{flambaum1997distribution}
VV~Flambaum and FM~Izrailev.
\newblock Distribution of occupation numbers in finite fermi systemsand role of
interaction in chaos and thermalization.
\newblock {\em Physical Review E}, 55(1):R13, 1997.
\end{thebibliography}
Now copy this bbl file into the TeX code as follows:
\documentclass[10pt,a4paper]{article}
\usepackage{showframe} % to visualise the typing area and margins
\usepackage{hyperref}
\begin{document}
This is text with \cite{Goossens} and \cite{adams}.
\nocite{*} % to test all bib entrys
%\bibliographystyle{unsrt} % <==============================================
\begin{thebibliography}{1}
\bibitem{Goossens}
Michel Goossens, Frank Mittelbach, and Alexander Samarin.
\newblock {\em The LaTeX Companion}.
\newblock Addison-Wesley, 1 edition, 1994.
\bibitem{adams}
Douglas Adams.
\newblock {\em The Restaurant at the End of the Universe}.
\newblock The Hitchhiker's Guide to the Galaxy. Pan Macmillan, 1980.
\bibitem{kastner1992single}
Marc~A Kastner.
\newblock The single-electron transistor.
\newblock {\em Reviews of Modern Physics}, 64(3):849, 1992.
\bibitem{flambaum1997distribution}
VV~Flambaum and FM~Izrailev.
\newblock Distribution of occupation numbers in finite fermi systemsand role of
interaction in chaos and thermalization.
\newblock {\em Physical Review E}, 55(1):R13, 1997.
\end{thebibliography}
\end{document}
with the result after compiling:

*.bbl. Copy the content into your submitted file at the place where you called\bibliography{sample}... They should have a description what to do exactly for submitting ... Or add a compilable short code to your answer that we can play with it ... – Mensch May 29 '16 at 02:12