United States Department of Agriculture, AGR. handbook
U.S. G.P.O.
Dairy Laboratory Eastern Regional Research Center Agricultural Research Service
U.S. G.P.O. 1978 Slightly revised United States Department of Agriculture, AGR. handbook no.54
by George P. Sanders
U.S. G.P.O. 1963 United States Department of Agriculture, AGR. handbook no.54
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