Dyfyniad APA

Tietenberg, T. H. (1992). Environmental and natural resource economics: (Reference materials of the training course). New York, NY: HarperCollins Publishers.

Dyfyniad Arddull Chicago

Tietenberg, Thomas H. Environmental and Natural Resource Economics: (Reference Materials of the Training Course). New York, NY: HarperCollins Publishers, 1992.

Dyfyniad MLA

Tietenberg, Thomas H. Environmental and Natural Resource Economics: (Reference Materials of the Training Course). New York, NY: HarperCollins Publishers, 1992.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.