Citazione Stile APA (7a Edizione)

Bergman, G. M., & Hausknecht, A. O. (1996). Cogroups and Co rings in categories of associative rings. American Mathematical Society.

Citazione stile Chigago Style (17a edizione)

Bergman, George M., e Adam O. Hausknecht. Cogroups and Co Rings in Categories of Associative Rings. Providence: American Mathematical Society, 1996.

Citatione MLA (9a ed.)

Bergman, George M., e Adam O. Hausknecht. Cogroups and Co Rings in Categories of Associative Rings. American Mathematical Society, 1996.