APA ציטוט

Hartwick John M & Olewiler, N. D. (1986). The economics of natural resource use. Harper and Row.

Chicago Style (17th ed.) Citation

Hartwick John M and Nancy D. Olewiler. The Economics of Natural Resource Use. New York: Harper and Row, 1986.

ציטוט MLA

Hartwick John M and Nancy D. Olewiler. The Economics of Natural Resource Use. Harper and Row, 1986.