APA aipamena

LPN. Ambler, Pa.: Lippincott Williams & Wilkins.

Chicago Style aipamena

LPN. Ambler, Pa.: Lippincott Williams & Wilkins.

MLA aipamena

LPN. Ambler, Pa.: Lippincott Williams & Wilkins.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.