Raymond, K., Kerry, S., V.(1993).Valuing natural assets : the economics of natural resource damage assessment / Editor, Raymond J. Kopp, V.Kerry Smith .:Resources For The Future.
Gaya MLA
Kopp, Raymond., Smith, V., Kerry."Valuing natural assets : the economics of natural resource damage assessment / Editor, Raymond J. Kopp, V.Kerry Smith".:Resources For The Future,1993.Textbook.