Gaya APA

Gass, S, (. (2002). Pedagogical norms for second and foreign language learning and teaching : studies in honour of Albert Valdman . Amsterdam: John Benjamins Publishing Company.

Gaya MLA

Gass, Susan, (et.al). "Pedagogical norms for second and foreign language learning and teaching : studies in honour of Albert Valdman". Amsterdam: John Benjamins Publishing Company, 2002. Buku Tercetak.