APA (7e ed.) Bronvermelding

HARTWICK, J. M., & OLEWILER, N. D. (1986). The economics of natural resource use. Harper and Row.

Chicago (17e ed.) Bronvermelding

HARTWICK, John M., en Nancy D. OLEWILER. The Economics of Natural Resource Use. Cambridge: Harper and Row, 1986.

MLA (9e ed.) Bronvermelding

HARTWICK, John M., en Nancy D. OLEWILER. The Economics of Natural Resource Use. Harper and Row, 1986.