Perman, R., Ma, Y., & Common, M. (2003). Natural resource and environmental economics (3rd ed.). Financial Times Prentice Hall.
Chicago Style (17th ed.) CitationPerman, Roger, Yue Ma, and Michael Common. Natural Resource and Environmental Economics. 3rd ed. Harlow, England: Financial Times Prentice Hall, 2003.
MLA (9th ed.) CitationPerman, Roger, et al. Natural Resource and Environmental Economics. 3rd ed. Financial Times Prentice Hall, 2003.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.