Citazione Stile APA (7a Edizione)

Higgins, B. H. (1959). Economic development: Principles, problems and policies. Norton.

Citazione stile Chigago Style (17a edizione)

Higgins, Benjamin Howard. Economic Development: Principles, Problems and Policies. New York: Norton, 1959.

Citatione MLA (9a ed.)

Higgins, Benjamin Howard. Economic Development: Principles, Problems and Policies. Norton, 1959.