1.
Natural Resource and Environmental Economics
by Perman, Roger, Common, Mich...
ISBN: 9780321417534
List Price: $141.20
2.
Natural Resource and Environmental Economics
by Perman, Roger, Common, Mich...
ISBN: 9780273655596
List Price: $93.33
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4.
Natural Resource and Environmental Economics
by Perman, Roger
ISBN: 9780582368767
List Price: $49.00