Dyfyniad APA

Culbertson, J. M., & Dewey, D. (1971). Economic development: An ecological approach. Alfred A. Knopf.

Dyfyniad Arddull Chicago

Culbertson, John M., and Donald Dewey. Economic Development: An Ecological Approach. New York: Alfred A. Knopf, 1971.

Dyfyniad MLA

Culbertson, John M., and Donald Dewey. Economic Development: An Ecological Approach. Alfred A. Knopf, 1971.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.