Higgins, B. H. (1968). Economic development: Problems, principles, and policies (Rev. ed.). New Delhi : W. W. Norton : Universal Book Stall.

Higgins, Benjamin Howard. Economic Development: Problems, Principles, and Policies. Rev. ed. New York: New Delhi : W. W. Norton : Universal Book Stall, 1968.

Higgins, Benjamin Howard. Economic Development: Problems, Principles, and Policies. Rev. ed. New Delhi : W. W. Norton : Universal Book Stall, 1968.