APA

Villard H. H., . (1959). Economic development. New York: Rhinehart.

Chicago

Villard Henry Hilgard, . 1959. Economic development. New York: Rhinehart.

Harvard

Villard H. H., . (1959). Economic development. New York: Rhinehart.

MLA

Villard Henry Hilgard, . Economic development. New York: Rhinehart. 1959.