Cita APA (7th ed.)

Beeby, A., & Brennan, A. (2004). First ecology (2nd ed.). Oxford University Press.

Cita Chicago (17th ed.)

Beeby, Alan, i Anne-Maria Brennan. First Ecology. 2nd ed. Oxford: Oxford University Press, 2004.

Cita MLA (8th ed.)

Beeby, Alan, i Anne-Maria Brennan. First Ecology. 2nd ed. Oxford University Press, 2004.