Bibliography

Create an bibliography.

Simple bibliography

% ...
\begin{document}
% ...
\begin{thebibliography}{LONGEST_KEY}
\bibitem[KEY]{KEY} <entry>
\end{thebibliography}
% ...
\end{document}

Proper bibliography

% ...
\bibliographystyle{plain}
% ...
\begin{document}
% ...
\bibliography{BIBFILE}
% ...
\end{document}

You will have to create a BIBFILE.bib in the current directory.

Referencing bibliography items:

\cite{KEY}

Bibtex command line:

bibtex <file>

By setting the environment variable BIBINPUTS you can save your .bib file in a different directory

See also Compiling LaTeX Documents