Higgins, B. H. (1968). Economic development: Problems, principles, and policies (Rev. ed.). New Delhi : W. W. Norton : Universal Book Stall.
Lua i Stíl Chicago (17ú heag.)Higgins, Benjamin Howard. Economic Development: Problems, Principles, and Policies. Rev. ed. New York: New Delhi : W. W. Norton : Universal Book Stall, 1968.
Lua MLA (8ú heag.)Higgins, Benjamin Howard. Economic Development: Problems, Principles, and Policies. Rev. ed. New Delhi : W. W. Norton : Universal Book Stall, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.