APA (7th ed.) Zitazioa

Chopra, H. (1995). Library conservation. Commonwealth Publishers.

Chicago Style (17th ed.) Zitazioa

Chopra, H.S. Library Conservation. New Delhi: Commonwealth Publishers, 1995.

MLA (9th ed.) Zitazioa

Chopra, H.S. Library Conservation. Commonwealth Publishers, 1995.