APA (7th ed.) Zitazioa

HARRIS, J. (1985). The Value of life: An introduction. Routledge.

Chicago Style (17th ed.) Zitazioa

HARRIS, John. The Value of Life: An Introduction. London: Routledge, 1985.

MLA (9th ed.) Zitazioa

HARRIS, John. The Value of Life: An Introduction. Routledge, 1985.