Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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