Παραπομπή APA

Higgins, B. (1972). Economic development: Principles, problems and policies. Central book depot.

Παραπομπή Chicago Style

Higgins, Benjamin. Economic Development: Principles, Problems and Policies. Allahabad: Central book depot, 1972.

Παραπομπή MLA

Higgins, Benjamin. Economic Development: Principles, Problems and Policies. Central book depot, 1972.