University of the Philippines Los Baños. Program on Environmental Science and Management (PESAM). (1981). Progress report: January 1981-June 1981. University of the Philippines Los Baños.
Citace podle Chicago (17th ed.)University of the Philippines Los Baños. Program on Environmental Science and Management (PESAM). Progress Report: January 1981-June 1981. Laguna: University of the Philippines Los Baños, 1981.
Citace podle MLA (9th ed.)University of the Philippines Los Baños. Program on Environmental Science and Management (PESAM). Progress Report: January 1981-June 1981. University of the Philippines Los Baños, 1981.
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