APA (7 ম সংস্করণ) উদ্ধৃতি

Callan, S., & Thomas, J. M. (2004). Environmental economics and management: Theory, policy, and applications (3rd ed.). Dryden Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Callan, Scott, এবং Janet M. Thomas. Environmental Economics and Management: Theory, Policy, and Applications. 3rd ed. Fort Worth, Tex: Dryden Press, 2004.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Callan, Scott, এবং Janet M. Thomas. Environmental Economics and Management: Theory, Policy, and Applications. 3rd ed. Dryden Press, 2004.