共 9 条
[2]
Allan W H, 1978, FAO ANIMAL PRODUCTIO, V10
[4]
Lamb R.A., 2000, VIRUS TAXONOMY CLASS, P549
[5]
*MAF NZ, 1999, IMP RISK AN CHICK ME
[7]
*OFF INT EP, 2000, MAN STAND DIAGN TEST
[8]
PICKEN JC, 1968, NEWCASTLE DIS VIRUS, P167
[9]
RUSSELL AD, 1992, PRINCIPLES PRACTICES