Citazione Stile APA (7a Edizione)

ALEXANDROFF, P., PERFECT, H., & PETERSEN, G. M. (1959). Introduction to the theory of groups. Blackie.

Citazione stile Chigago Style (17a edizione)

ALEXANDROFF, P.S, Hazel PERFECT, e G. M. PETERSEN. Introduction to the Theory of Groups. London: Blackie, 1959.

Citatione MLA (9a ed.)

ALEXANDROFF, P.S, et al. Introduction to the Theory of Groups. Blackie, 1959.