1. Official Methods of Analysis,1980
2. Buffelgrass origins;Bashaw,1985
3. Steer diets in southeastern Colorado;Beck;J. Range Manage,1975
4. Nutrient content of grasses growing on four range sites in South Texas;Everitt;USDA/ARS, ARR-S-11,1982
5. Forage fiber analysis (apparatus, reagents, procedures and some applications);Goering,1970