Dyfyniad APA

Tietenberg, T. (1996). Environmental and natural resource economics. Harper Collins.

Dyfyniad Arddull Chicago

Tietenberg, Tom. Environmental and Natural Resource Economics. New York: Harper Collins, 1996.

Dyfyniad MLA

Tietenberg, Tom. Environmental and Natural Resource Economics. Harper Collins, 1996.

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