APA aipamena

Varughese, C. (1998). Spoken English.

Chicago Style aipamena

Varughese, Cheriathu. Spoken English. Kottayam, 1998.

MLA aipamena

Varughese, Cheriathu. Spoken English. 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.