APA (7th ed.) Zitazioa

Eckstut-Didier, S., Lubelska, D., & Parker, S. (1989). First impressions. Longman.

Chicago Style (17th ed.) Zitazioa

Eckstut-Didier, Samuela, Diana Lubelska, eta Sue Parker. First Impressions. Essex: Longman, 1989.

MLA (9th ed.) Zitazioa

Eckstut-Didier, Samuela, et al. First Impressions. Longman, 1989.