|Authors :||Piemeisel, R. L., Lawson, Francis R.|
|Title:||Types of Vegetation in the San Joaquin Valley of California and Their Relation to the Beet Leafhopper.|
|Publication info:||Beltsville, MD: U.S. Department of Agriculture, National Agricultural Library, Alternative Farming Systems Information Center
|Rights/Permissions:||Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S.|
Types of Vegetation in the San Joaquin Valley of California and Their Relation to the Beet Leafhopper.
Piemeisel, R. L., Lawson, Francis R.
Washington DC: : United States Department of Agriculture, June 1937
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