Dyfyniad APA

BIRNBAUM, S. [., & BIRNBAUM, A. M. [. (1990). Birnbaum's Great Britain 1991. Houghton Mifflin Co.

Dyfyniad Arddull Chicago

BIRNBAUM, Stephen [Ed.], and Alexandra Mayes [Ed.] BIRNBAUM. Birnbaum's Great Britain 1991. Boston: Houghton Mifflin Co, 1990.

Dyfyniad MLA

BIRNBAUM, Stephen [Ed.], and Alexandra Mayes [Ed.] BIRNBAUM. Birnbaum's Great Britain 1991. Houghton Mifflin Co, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.