Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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