Παραπομπή σε μορφή APA (7η εκδ.)

Harris, J. M. (2006). Environmental and natural resource economics: A contemporary approach (2nd ed.). Houghton Mifflin.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Harris, Jonathan M. Environmental and Natural Resource Economics: A Contemporary Approach. 2nd ed. Boston: Houghton Mifflin, 2006.

Παραπομπή σε μορφή MLA (9th εκδ.)

Harris, Jonathan M. Environmental and Natural Resource Economics: A Contemporary Approach. 2nd ed. Houghton Mifflin, 2006.