APA aipamena

(1964). ENGLISH GRAMMAR AND EXERCISES BOOK ONE. Longman.

Chicago Style aipamena

ENGLISH GRAMMAR AND EXERCISES BOOK ONE. Longman, 1964.

MLA aipamena

ENGLISH GRAMMAR AND EXERCISES BOOK ONE. Longman, 1964.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.