APA (7th ed.) Citation

Olson, K. R., Ebelhar, S. A., & Lang, J. M. Effects of 24 Years of Conservation Tillage Systems on Soil Organic Carbon and Soil Productivity. Wiley.

Chicago Style (17th ed.) Citation

Olson, Kenneth R., Stephen A. Ebelhar, and James M. Lang. Effects of 24 Years of Conservation Tillage Systems on Soil Organic Carbon and Soil Productivity. Wiley.

MLA (9th ed.) Citation

Olson, Kenneth R., et al. Effects of 24 Years of Conservation Tillage Systems on Soil Organic Carbon and Soil Productivity. Wiley.