共 8 条
[1]
BERG RL, 1971, AM J VET RES, V32, P11
[3]
LAING J, 1960, 51 FAO AGR STUD
[4]
MARSH H, 1953, AM J VET RES, V14, P396
[5]
MILLER VA, 1964, AM J VET RES, V25, P664
[6]
NEWSAM I. D. B., 1967, AUST VET J, V43, P237, DOI 10.1111/j.1751-0813.1967.tb04850.x
[8]
1961, 1961 M EXP PAN LIV I