共 20 条
[1]
ALLEN ENA A., 1941, AMER JOUR VET RES, V2, P214
[2]
BISHOP A, 1938, PARASITOLOGY, V30, P2
[3]
DELAPLANE JP, 1932, RI AGR EXP STA B, V233
[4]
DeVOLT H. M., 1936, MARYLAND AGRIC EXP STA BULL, V392, P493
[8]
RETTGER LF, 1929, STORRS AGR EXP B, V156, P285
[9]
RETTGER LF, 1927, STORRS AGR EXPER STA, V148, P285