Callan, S., & Thomas, J. M. (2004). Environmental economics & management: Theory, policy, and applications (3rd ed.). Thomson/South-Western.
Chicago Style (17. basım) AtıfCallan, Scott, ve Janet M. Thomas. Environmental Economics & Management: Theory, Policy, and Applications. 3rd ed. Australia: Thomson/South-Western, 2004.
MLA (9th ed.) AtıfCallan, Scott, ve Janet M. Thomas. Environmental Economics & Management: Theory, Policy, and Applications. 3rd ed. Thomson/South-Western, 2004.
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