(1991). Special issue on Laguna lake research. University of the Philippines Los Banos.
Chicagoスタイル(17版)引用形式Special Issue on Laguna Lake Research. College, Laguna: University of the Philippines Los Banos, 1991.
MLA(9版)引用形式Special Issue on Laguna Lake Research. University of the Philippines Los Banos, 1991.
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