APA (7th ed.) Citation

Nicol, K. J., Heady, E. O., & Madsen, H. C. (1974). Models of soil loss, land and water use, spatial agricultural structure, and the environment. Center for Agricultural and Rural Development, Iowa State University.

Chicago Style (17th ed.) Citation

Nicol, Kenneth J., Earl O. Heady, and Howard C. Madsen. Models of Soil Loss, Land and Water Use, Spatial Agricultural Structure, and the Environment. Ames: Center for Agricultural and Rural Development, Iowa State University, 1974.

MLA (9th ed.) Citation

Nicol, Kenneth J., et al. Models of Soil Loss, Land and Water Use, Spatial Agricultural Structure, and the Environment. Center for Agricultural and Rural Development, Iowa State University, 1974.