Beling, W. A., & Totten, G. O. (1970). Developing nations: Quest for a model. Van Nostrand Reinhold.
Lua i Stíl Chicago (17ú heag.)Beling, Willard A., agus George O. Totten. Developing Nations: Quest for a Model. New York: Van Nostrand Reinhold, 1970.
Lua MLA (9ú heag.)Beling, Willard A., agus George O. Totten. Developing Nations: Quest for a Model. Van Nostrand Reinhold, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.