Citazione Stile APA (7a Edizione)

Calder, N. (1973). Nature in the round: A guide to environmental science. Viking Press.

Citazione stile Chigago Style (17a edizione)

Calder, Nigel. Nature in the Round: A Guide to Environmental Science. New York: Viking Press, 1973.

Citatione MLA (9a ed.)

Calder, Nigel. Nature in the Round: A Guide to Environmental Science. Viking Press, 1973.