Dyfyniad APA

Tietenberg, T. [. H., & Lewis, L. (2018). Environmental & natural resource economics (11th Edition.). Routhledge.

Dyfyniad Arddull Chicago

Tietenberg, Tom [Thomas H.], and Lynne Lewis. Environmental & Natural Resource Economics. 11th Edition. Abingdon,Oxon: Routhledge, 2018.

Dyfyniad MLA

Tietenberg, Tom [Thomas H.], and Lynne Lewis. Environmental & Natural Resource Economics. 11th Edition. Routhledge, 2018.

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