共 37 条
[1]
[Anonymous], 1976, OFFICIAL METHODS ANA, P418
[3]
BINNERTS WT, 1968, VET REC, V82, P470
[6]
EMERY RS, 1965, J DAIRY SCI, V48, P1645
[10]
GOERING HK, 1970, ARS USDA AGR HDB, V0379