共 8 条
[1]
FORSYTHE RH, 1968, EGG QUALITY STUDY HE, P262
[2]
FOSTER EM, 1969, 1683 NAT RES COUNC D
[3]
1969, 7CFR55
[4]
1966, ARS7437 USDA
[5]
1967, 7CFR55 US DEP AGR
[6]
1969, 21CFR11 42
[7]
1969, ARS7448 ARS USDA
[8]
1968, ORDINANCE CODE REGUL