共 15 条
[1]
CAMPBELL HC, 1931, MILK DEALER, V21, P42
[2]
COOKE WW, 1891 AGR EXP STA ANN
[3]
ENGLAND CW, 1937, 413 MD AGR EXP STA B
[4]
ERDMANN HH, 1950, FED MILK MARKETING
[5]
FARRINGTON EH, 1891, 16 ILL AGR EXP STA B
[6]
HERRMAN LF, 1954, USDA661954 MARK RES
[7]
HUNZIKER OF, 1914, 27 IND AGR EXP STA A
[8]
JUDKINS HF, 1921, J DAIRY SCI, V4, P350
[9]
KENT FL, 1902, 70 OR AGR EXP STA B
[10]
KRAMER CY, 1956, J BIOMETRIC SOCIETY, V12, P307