Crump, A. (1991). Dictionary of environment and development: People, places, ideas and organizations. Earthscan.
Tohutoru Kātū Chicago (17th ed.)Crump, Andy. Dictionary of Environment and Development: People, Places, Ideas and Organizations. London: Earthscan, 1991.
Tohutoro MLA (9th ed.)Crump, Andy. Dictionary of Environment and Development: People, Places, Ideas and Organizations. Earthscan, 1991.
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