APA-Zitierstil (7. Ausg.)

Roy, E. P. (1981). Cooperatives: Development, principles and management (4.ed.). Interstate.

Chicago-Zitierstil (17. Ausg.)

Roy, Ewell P. Cooperatives: Development, Principles and Management. 4.ed. Danville, IL: Interstate, 1981.

MLA-Zitierstil (9. Ausg.)

Roy, Ewell P. Cooperatives: Development, Principles and Management. 4.ed. Interstate, 1981.