APA aipamena

Abraham, P., & Paul Abraham; Daphne Mackey. (1997). Contact USA: A reading and vocabulary text. [Englewood Cliffs, N.J.]: Longman,Prentice Hall Regents.

Chicago Style aipamena

Abraham, Paul, và Paul Abraham; Daphne Mackey. Contact USA: A Reading and Vocabulary Text. [Englewood Cliffs, N.J.]: Longman,Prentice Hall Regents, 1997.

MLA aipamena

Abraham, Paul, và Paul Abraham; Daphne Mackey. Contact USA: A Reading and Vocabulary Text. [Englewood Cliffs, N.J.]: Longman,Prentice Hall Regents, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.