APA aipamena

Scott, J. (1969). White poppy: A history of opium.

Chicago Style aipamena

Scott, Jm. White Poppy: A History of Opium. 1969.

MLA aipamena

Scott, Jm. White Poppy: A History of Opium. 1969.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.