Orchard green-manure crops in California
Bulletin (United States. Bureau of Plant Industry) ; no. 190.
United States. Department of Agriculture.
United States. Bureau of Plant Industry.
United States. Government Printing Office.
Washington,Govt. Print. Off.,1910.
At head of title: U.S. Dept. of Agriculture. Bureau of Plant Industry ...
NAL: 1 P69B no. 190 1910
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