共 6 条
- [1] Farrar C. L., 1954, AM BEE J, V94, p[52, 60]
- [2] FARRAR CL, 1954, AM BEE J, V94, P60
- [3] Gochnauer T. A., 1953, AM BEE J, V93, P410
- [4] GOETZE G., 1959, BEE WORLD, V40, P217
- [5] GONTARSKI H, 1954, ARZNEIMITTEL-FORSCH, V4, P161
- [6] KATZNELSON H., 1952, SCI AGRIC [OTTAWA], V32, P219