Donald, G. (1970). Development Digest: A quarterly journal of excerpts, summaries, and reprints of current materials on economic and social development (Vol.). National Planning Association.
Chicago-referens (17:e uppl.)Donald, Gordon. Development Digest: A Quarterly Journal of Excerpts, Summaries, and Reprints of Current Materials on Economic and Social Development. Vol. Washington, D. C.: National Planning Association, 1970.
MLA-referens (9:e uppl.)Donald, Gordon. Development Digest: A Quarterly Journal of Excerpts, Summaries, and Reprints of Current Materials on Economic and Social Development. Vol. National Planning Association, 1970.
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