APA aipamena

Gumpol, W. (2002). Mastery of Sixteen Tenses/ W.Y. Gumpol. Yogyakarta: Kanisius.

Chicago Style aipamena

Gumpol, W.Y. Mastery of Sixteen Tenses/ W.Y. Gumpol. Yogyakarta: Kanisius, 2002.

MLA aipamena

Gumpol, W.Y. Mastery of Sixteen Tenses/ W.Y. Gumpol. Yogyakarta: Kanisius, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.