\begin{thebibliography}{1}

\bibitem{unixtype2:book}
Narain Gehani.
\newblock {\em Document Formatting and Typesetting on the Unix System second
  edition}.
\newblock Silicon Press, Summit, NJ, 1987.

\bibitem{bk:pic}
Brian~W. Kernighan.
\newblock {PIC} - {A G}raphics {L}anguages for {T}ypesetting.
\newblock {\em Bell Laboratories, Computer Science Technical Report No.116},
  December 1984.

\bibitem{unixtype1:book}
B.~Srinivasan.
\newblock {\em Unix Document Processing and Typesetting}.
\newblock World Scientific, Singapore, New Jersey, London, 1993.

\end{thebibliography}
