TY - BOOK AU - Paulsen ; Ares, Harold A. ; Fred N. TI - Grazing values management of black grama tobosa grasslands associated shrub ranges of South West T2 - Technical bulletin U1 - 634.998 21st ed. PY - 0000///n. d CY - Washington, D.C. PB - United States Department of Agriculture KW - Brushes KW - Grasslands KW - Grazing ER -