共 13 条
[1]
ALFONSUS ERWIN C., 1933, ARCH BIENENKUNDE, V14, P220
[2]
BUTTLER J, 1873, AM BEE J, V9, P27
[3]
COOK AJ, 1887, AM B J, V18, P627
[4]
DADANT C, 1873, AM B J, V9, P112
[5]
Dadant C.P., 1926, AM BEE J, V66, P170
[6]
de Boissezon P, 1933, CR SOC BIOL, V114, P487
[7]
DOOLITTLE GM, 1885, AM B J, V21, P197
[8]
HAYDAK M. H., 1933, Arch. Bienenk., V14, P185
[9]
Haydak MH, 1934, J AGRIC RES, V49, P0021
[10]
HUBER F, 1926, NEW OBSERVATIONS BEE, P230