共 29 条
[22]
ROBERTSON A., 1951, EMPIRE JOUR EXPTL AGRIC, V19, P113
[23]
ROBERTSON A., 1955, Proceedings. British Society of Animal Production, P94
[25]
TOUCHBERRY RW, 1967, ESTIMATION GENETIC E
[27]
WEINER G, 1966, 1966 AN BREED RES OR, P18
[28]
1968, ARS44204 US DEP AGR
[29]
1964, ARS44143 US DEP AGR