Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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