APA aipamena

Needham, V. (1967). The black riders. Collins & The Book Society.

Chicago Style aipamena

Needham, Violet. The Black Riders. Collins & The Book Society, 1967.

MLA aipamena

Needham, Violet. The Black Riders. Collins & The Book Society, 1967.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.