APA aipamena

Perkin, H. (1970). History: Introduction for the intending student. RKP.

Chicago Style aipamena

Perkin, Harold. History: Introduction for the Intending Student. London: RKP, 1970.

MLA aipamena

Perkin, Harold. History: Introduction for the Intending Student. RKP, 1970.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.