(1979). Directory of institutions and individuals active in environmentally-sound and appropriate technologies. Published for the United Nations Environment Programme by Pergamon Press.
Cytowanie według stylu Chicago (wyd. 17)Directory of Institutions and Individuals Active in Environmentally-sound and Appropriate Technologies. Oxford New York: Published for the United Nations Environment Programme by Pergamon Press, 1979.
Cytowanie według stylu MLA (wyd. 9)Directory of Institutions and Individuals Active in Environmentally-sound and Appropriate Technologies. Published for the United Nations Environment Programme by Pergamon Press, 1979.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..