Jornada Bibliography

Filters: Author is R.S. Campbell and Keyword is black grama  [Clear All Filters]
Government Report
Campbell R.S., Crafts E.C..  1939.  How to keep and increase black grama on Southwestern ranges. U.S. Department of Agriculture, Leaflet No. 180. :8.
Report
Campbell R.S., Crafts E.C..  1938.  Tentative range utilization standards; black grama (Bouteloua eriopoda). USDA, Forest Service, Southwest Forest and Range Experimental Station. :4.