Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Shelford, V. E. (1978). The ecology of North America (First paperback printing.). University of Illinois Press.

Chicago Citation Edition Citation

Shelford, Victor E. The Ecology of North America. First paperback printing. Urbana: University of Illinois Press, 1978.

MLA Citation Edition Citation

Shelford, Victor E. The Ecology of North America. First paperback printing. University of Illinois Press, 1978.