NIJKAMP, P. (1976). Environmental economics. Martinus Nijhoff Social Sciences Division.
Tohutoru Kātū Chicago (17th ed.)NIJKAMP, Peter. Environmental Economics. Leiden: Martinus Nijhoff Social Sciences Division, 1976.
Tohutoro MLA (9th ed.)NIJKAMP, Peter. Environmental Economics. Martinus Nijhoff Social Sciences Division, 1976.
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