APA (7th ed.) Zitazioa

Gittelson, B. (1986). Bio-rhythm. Futura.

Chicago Style (17th ed.) Zitazioa

Gittelson, Bernard. Bio-rhythm. London: Futura, 1986.

MLA (9th ed.) Zitazioa

Gittelson, Bernard. Bio-rhythm. Futura, 1986.