共 22 条
- [1] BAILEY L., 1956, BEE WORLD, V37, P70
- [2] BAILEY L., 1955, BEE WORLD, V36, P121
- [3] BAILEY L, 1955, AM BEE J, V95, P243
- [4] BAILEY L, 1955, AM BEE J, V95, P225
- [5] BETTS AD, 1951, DISEASES BEES THEIR
- [6] DONHOFF, 1957, UEBER FADENPILZ DARM, V13, P66
- [7] ECKERT JE, 1954, CALIFORNIA AGR EXPT, V29
- [8] ECKERT JE, 1957, COMMUNICATION 0114
- [9] ECKERT JE, 1954, CALIFORNIA AGR EXPT, V15
- [10] ELLIS LL, 1957, AM BEE J, V97, P62