एपीए उद्धरण

Williamson, S. G. (1985). Combinatorics for computer science. Computer Science Press.

शिकागो स्टाइल उद्धरण

Williamson, S. Gill. Combinatorics for Computer Science. Rockville, Md.: Computer Science Press, 1985.

एमएलए उद्धरण

Williamson, S. Gill. Combinatorics for Computer Science. Computer Science Press, 1985.