Cita APA (7a ed.)

Culbertson, J. M. (1971). Economic development: An ecological approach. Knopf.

Cita Chicago Style (17a ed.)

Culbertson, John Mathew. Economic Development: An Ecological Approach. New York: Knopf, 1971.

Cita MLA (9a ed.)

Culbertson, John Mathew. Economic Development: An Ecological Approach. Knopf, 1971.