APA Edition Citation

Leeper, G. W., & Uren, N. C. (2006). Soil science, an introduction.

Chicago Edition Citation

Leeper, G W., and N C. Uren. Soil Science, an Introduction. New Delhi, Overseas Press, 2006.

MLA Edition Citation

Leeper, G W., and N C. Uren. Soil Science, an Introduction. 2006.

Warning: These citations may not always be 100% accurate.