एपीए उद्धरण

Balakrishnan, V. K. (1995). Schaum's outline of theory and problems of combinatorics. New York: McGraw-Hill.

शिकागो स्टाइल उद्धरण

Balakrishnan, V. K. Schaum's Outline of Theory and Problems of Combinatorics. New York: McGraw-Hill, 1995.

एमएलए उद्धरण

Balakrishnan, V. K. Schaum's Outline of Theory and Problems of Combinatorics. New York: McGraw-Hill, 1995.