共 31 条
[1]
AHUNU BK, 1978, THESIS U BRIT COLUMB
[2]
BAKELS F, 1959, AN BREED ABSTR, V27
[3]
BARR GR, 1963, J DAIRY SCI, V46, P628
[6]
EVANS DL, 1964, J DAIRY SCI, V47, P699
[7]
FREEMAN AE, 1960, J DAIRY SCI, V43, P876