Citazione Stile APA (7a Edizione)

Hawley, A. H. (1950). Human ecology: A theory of community structure. Ronald Press Co.

Citazione stile Chigago Style (17a edizione)

Hawley, Amos Henry. Human Ecology: A Theory of Community Structure. New York: Ronald Press Co, 1950.

Citatione MLA (9a ed.)

Hawley, Amos Henry. Human Ecology: A Theory of Community Structure. Ronald Press Co, 1950.