APA aipamena

Owen, O. S., Chiras, D. D., & Reganold, J. P. (1998). Natural resources conservation: Management for a sustainable future (7th ed.). Prentice-Hall.

Chicago Style aipamena

Owen, Oliver S., Daniel D. Chiras, and John P. Reganold. Natural Resources Conservation: Management for a Sustainable Future. 7th ed. Upper Saddle River, N. J: Prentice-Hall, 1998.

MLA aipamena

Owen, Oliver S., et al. Natural Resources Conservation: Management for a Sustainable Future. 7th ed. Prentice-Hall, 1998.