Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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