共 17 条
[1]
ARMSTRONG DV, 1964, THESIS MICHIGAN STAT
[3]
BRANTON C, 1956, J DAIRY SCI, V39, P933
[6]
GAINES WL, 1928, 308 ILL AGR EXP STA
[7]
JONES IR, 1941, 395 OR AGR EXP STA B
[8]
LEWIS RC, 1950, AGR EXP STA QUART B, V32, P546
[9]
MCDANIEL BT, 1967, ARS44188 US DEP AGR