Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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