PEARCE, D. (1990). Ekonomi alam sekitar. UPM.
Chicago Style (17th ed.) CitationPEARCE, D.W. Ekonomi Alam Sekitar. Serdang: UPM, 1990.
MLA (8th ed.) CitationPEARCE, D.W. Ekonomi Alam Sekitar. UPM, 1990.
Warning: These citations may not always be 100% accurate.