APA (7e ed.) Bronvermelding

Liu, C. L. (1968). Introduction to combinatorial mathematics. McGraw-Hill Book Co., Inc.

Chicago (17e ed.) Bronvermelding

Liu, C. L. Introduction to Combinatorial Mathematics. New York: McGraw-Hill Book Co., Inc, 1968.

MLA (9e ed.) Bronvermelding

Liu, C. L. Introduction to Combinatorial Mathematics. McGraw-Hill Book Co., Inc, 1968.