Cita APA (7a ed.)

Crebbin, J., & Hellard, S. (2004). Apples. Cambridge University Press.

Cita Chicago Style (17a ed.)

Crebbin, June, y Susan Hellard. Apples. Cambridge: Cambridge University Press, 2004.

Cita MLA (8a ed.)

Crebbin, June, y Susan Hellard. Apples. Cambridge University Press, 2004.