共 15 条
[1]
CHURCHIL.AE, 1965, RES VET SCI, V6, P162
[2]
CHURCHILL AE, UNPUBLISHED DATA
[3]
COVER M. S., 1958, AVIAN DIS, V2, P375, DOI 10.2307/1587477
[4]
COVER M. S., 1957, AVIAN DIS, V1, P54, DOI 10.2307/1587547
[5]
COVER MS, 1958, AVIAN DIS, V2, P383
[7]
Hitchner S. B., 1960, Avian Diseases, V4, P291, DOI 10.2307/1587605
[8]
HOWES DW, 1962, 12 P WORLDS POULTR C
[10]
RUBIN H, 1960, P NATL ACAD SCI USA, V46, P105