APA aipamena

Chopra,H.S. (1995). Library conservation. Common Wealth.

Chicago Style aipamena

Chopra,H.S. Library Conservation. New Delhi: Common Wealth, 1995.

MLA aipamena

Chopra,H.S. Library Conservation. Common Wealth, 1995.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.