Ravera, O. (1989). Ecological assessment of environmental degradation, pollution and recovery: Lectures of a course held at the joint Research Center, Ispra Italy 12-16 octuber 1987. Elsevier.
Chicagoスタイル(17版)引用形式Ravera, Oscar. Ecological Assessment of Environmental Degradation, Pollution and Recovery: Lectures of a Course Held at the Joint Research Center, Ispra Italy 12-16 Octuber 1987. Amsterdam: Elsevier, 1989.
MLA(9版)引用形式Ravera, Oscar. Ecological Assessment of Environmental Degradation, Pollution and Recovery: Lectures of a Course Held at the Joint Research Center, Ispra Italy 12-16 Octuber 1987. Elsevier, 1989.
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