APA-referens (7:e uppl.)

Gill, R. T. (1991). Economics and the public interest (5th ed.). Mayfield Pub. Co..

Chicago-referens (17:e uppl.)

Gill, Richard T. Economics and the Public Interest. 5th ed. Mountain View, Calif.: Mayfield Pub. Co., 1991.

MLA-referens (8:e uppl.)

Gill, Richard T. Economics and the Public Interest. 5th ed. Mayfield Pub. Co., 1991.