共 37 条
- [31] Wherry E. T., 1921, AM FERN J, V11, P5
- [32] Wherry E. T., 1961, FERN GUIDE NE MIDLAN
- [33] 1969, 1397 CAN DEP AGR PUB
- [34] 1960, 165 US AGR HDB
- [35] 1973, 75 GUID CHEM WEED CO
- [36] 1974, ASULOX CONTROL BRACK
- [37] 1974, NATIONAL ATLAS CANAD