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[2]
BABCOCK SM, 1898, 16 WIS AGR EXP STA, P157
[3]
BABCOCK SM, 1902, 19TH WIS AGR EXPT ST, P174
[4]
BABCOCK SM, 1900, 17TH AGR EXPT STA AN, P102
[5]
BABCOCK SM, 1902, WIS AGR EXPT STA B, V94
[6]
DAVIS JOHN GILBERT, 1932, JOUR DAIRY RES, V3-, P241
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DOANE CF, 1906, USDA BUR ANIMAL IND, V85
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ORLAJENSEN P, 1900, LANDW JAHR SCHWEIZ, V14, P197
[10]
SHERWOOD I. R., 1935, Journal of Dairy Research, V6, P407, DOI 10.1017/S0022029900001552