APA aipamena

Chapman, R. L. (1968). The USA men and machines. New York: Regents Publishing Co., Inc.

Chicago Style aipamena

Chapman, Rachael L. The USA Men and Machines. New York: Regents Publishing Co., Inc, 1968.

MLA aipamena

Chapman, Rachael L. The USA Men and Machines. New York: Regents Publishing Co., Inc, 1968.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.