Gaya APA

Tietenberg, Tom, Lewis, Lynne. (2012). Environmental & natural resource economics 9th ed (9th ed). Upper Saddle River: Pearson Education.

Gaya Chicago

Tietenberg, Tom, Lewis, Lynne. Environmental & natural resource economics 9th ed. 9th ed Upper Saddle River: Pearson Education, 2012. Text.

Gaya MLA

Tietenberg, Tom, Lewis, Lynne. Environmental & natural resource economics 9th ed. 9th ed Upper Saddle River: Pearson Education, 2012. Text.

Gaya Turabian

Tietenberg, Tom, Lewis, Lynne. Environmental & natural resource economics 9th ed. 9th ed Upper Saddle River: Pearson Education, 2012. Print.