APA استشهاد

Sharp,Ansel M. (1996). Economics of social issues (12.). Irwin Book Team.

استشهاد بنمط شيكاغو

Sharp,Ansel M. Economics of Social Issues. 12. Chicago: Irwin Book Team, 1996.

MLA استشهاد

Sharp,Ansel M. Economics of Social Issues. 12. Irwin Book Team, 1996.