APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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