APA Citatie

UNEP. (1979). Directory of institutions and individuals active in environmentally sound and appropriate technologies. Pergamon press.

Chicago Style citaat

UNEP. Directory of Institutions and Individuals Active in Environmentally Sound and Appropriate Technologies. NewYork: Pergamon press, 1979.

MLA citatie

UNEP. Directory of Institutions and Individuals Active in Environmentally Sound and Appropriate Technologies. Pergamon press, 1979.

Let op: Deze citaties zijn niet altijd 100% accuraat.