"Graft on advanced order on imported philoxes, resistant stocks" : letter dated March 9, 1932 to U. S. Department of Agriculture, Bureau of Plant Industry, Washington, D.C.]
Cloverdale, California, Vadon's Vineyards and Nurseries, 1932
1932
U.S. Department of Agriculture, National Agricultural Library
U.S. Department of Agriculture, National Agricultural Library
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