MLA

Murrell, et al. Improving Potassium Recommendations for Agricultural Crops. Springer International Publishing, 2021.

APA

Murrell, M., Mikkelsen, R. L, Norton, R., Sulewski, G., & Thompson, M. L. (2021). Improving Potassium Recommendations for Agricultural Crops. Springer International Publishing.

Chicago

Murrell, Robert L Mikkelsen, Robert Norton, Gavin Sulewski, and Michael L Thompson. Improving Potassium Recommendations for Agricultural Crops. : Springer International Publishing, 2021.