共 12 条
[2]
BRUNER DW, 1968, CORNELL VET, V58, P75
[3]
FIELD H I, 1948, Br Vet J, V104, ppassim
[4]
FIELD H I, 1948, Br Vet J, V104, P323
[5]
FIELD H. I., 1948, VET JOUR, V104, P251
[7]
GIBSON EA, 1967, AGRICULTURE-LONDON, V74, P183
[8]
Gubkin S. M., 1962, Trudy Vsesoyuznogo Instituta Veterinarnoi Sanitarii, V20, P243
[9]
A SURVEY BY THE SEWAGE SWAB METHOD OF LATENT ENTERIC INFECTION IN AN URBAN AREA
[J].
JOURNAL OF HYGIENE,
1952, 50 (02)
:137-156
[10]
MOORE B., 1948, Monthly Bulletin of the Ministry of Health and the Emergency Public Health Laboratory Service, V7, P241