Dewees, P. A. (1993). Trees, land and labor. The World Bank.
Tohutoru Kātū Chicago (17th ed.)Dewees, Peter A. Trees, Land and Labor. Washington, D.C.: The World Bank, 1993.
Tohutoro MLA (9th ed.)Dewees, Peter A. Trees, Land and Labor. The World Bank, 1993.
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