Gaya APA

Lusk, H, F. (1969). Business Law, Principles and Cases (Cet. 7). Jllinois: Richacrd D. Irwin, Inc.

Gaya MLA

Lusk, Harold, F. "Business Law, Principles and Cases". Cet. 7 Jllinois: Richacrd D. Irwin, Inc, 1969. .