Citazione Stile APA (7a Edizione)

Yohe, G. W. (1989). Study guide to accompany samuel economics (Third edition.). Mcgraw hill.

Citazione stile Chigago Style (17a edizione)

Yohe, Gary W. Study Guide to Accompany Samuel Economics. Third edition. New York: Mcgraw hill, 1989.

Citatione MLA (9a ed.)

Yohe, Gary W. Study Guide to Accompany Samuel Economics. Third edition. Mcgraw hill, 1989.