APA (7th ed.) Citation

Amberg, B., Franciosi, S., & De Giovanni, F. (1992). Products of groups. Clarendon Pr.

Chicago Style (17th ed.) Citation

Amberg, Bernhard, Silvana Franciosi, and Francesco De Giovanni. Products of Groups. Oxford: Clarendon Pr, 1992.

MLA (9th ed.) Citation

Amberg, Bernhard, et al. Products of Groups. Clarendon Pr, 1992.