Simply constructing a working example from Bernard's comment above (@Bernard, feel free to take my answer and repost it).

\begin{filecontents}{\jobname.bib}
@book{veblen1919place,
title={The Place of Science in Modern Civilisation: and other essays},
author={Veblen, Thorstein},
year={1919},
publisher={BW Huebsch}
}
@book{veblen2007theory,
title={The theory of the leisure class},
author={Veblen, Thorstein},
year={2007},
publisher={Oxford University Press},
url = {http://www.test.org}
}
@book{knuth1989texbook,
title={The TEXbook},
author={Knuth, D.E.},
series={Computers \& and typesetting},
url={https://books.google.com/books?id=kURPnQEACAAJ},
year={1989},
publisher={Addison Wesley}
}
\end{filecontents}
\documentclass{article}
\usepackage[citestyle=authoryear,bibstyle=numeric, natbib=true, backend=bibtex]{biblatex}
\addbibresource{\jobname.bib}
\begin{document}
\noindent
As \citeauthor*{veblen2007theory} has argued \citep[12--19]{veblen1919place} it is clear that $y$. Second, \citet[12]{veblen1919place} also show $m$ and $x$ \citet[37]{veblen1919place}. All thanks to \citeauthor*{ knuth1989texbook}.
\printbibliography
\end{document}
biblatex, which has anatbib emulationmode: it's enough to load biblatex with option:citationstyle=authoryearot one of its variants. For the bibliography,numericis the default. – Bernard Feb 18 '15 at 22:37