\documentclass{article}
%\usepackage{filecontents}
\begin{filecontents*}{references.bib}
@misc {dg,
author = {{Detroit Gazette}},
note = {1817--1830. Microfilm edition, Detroit Gazette Collection,
c.~123, XYZ University Library, University Town, State},
}
\end{filecontents*}
\usepackage[authoryear,round]{natbib}
\bibliographystyle{plainnat} % choose a bibliography style that suits your needs
\begin{document}
\dots{} as the Ohio Canal fund \citep[Dec~11 1827,p.~2, c.~5]{dg}\dots
\bibliography{references}
\end{document}
the result is:
. . . as the Ohio Canal fund (?, Dec 11 1827,p. 2, c. 5). . .