7절 인용

TeXbook \cite{knuth1984texbook}를 참고한다

TeXbook [1]를 참고한다

\begin{thebibliography}{1}

\bibitem{knuth1984texbook}
Donald~Ervin Knuth and Duane Bibby.
\newblock The TeXbook, volume~3.
\newblock Addison-Wesley Reading, 1984.

\end{thebibliography}