- Author: Polly Parker, Douglas T. (Tim) Hall, Kathy E. Kram, Ilene C. Wasserman
- Language: English
- Year: 2018
- Author: National Research Council, Board on Agriculture, Committee on Animal Nutrition
- Language: English
- Year: 1982
- Author: National Research Council, Division on Earth and Life Studies, Environment and Resources Commission on Geosciences, Water Science and Technology Board, Proceedings of the 1997 Abel Wolman Distinguished Lecture and Symposium on the Hydrologic Sciences, National Academy of Sciences
- Language: English
- Year: 1998
- Author: Melinda Muth, Bob Selden
- Language: English
- Year: 2018