共 50 条
- [41] MADDOCK QUADRANGLE, NORTH-DAKOTA GEOLOGICAL SOCIETY OF AMERICA BULLETIN, 1947, 58 (12) : 1165 - 1165
- [43] GEOGRAPHICAL AFFINITIES OF THE FLORA OF NORTH-DAKOTA AMERICAN MIDLAND NATURALIST, 1951, 45 (03): : 722 - 739
- [45] TREE FRUIT CULTURE IN NORTH-DAKOTA NORTH DAKOTA COOPERATIVE EXTENSION SERVICE CIRCULAR, 1983, (NH-32): : 1 - 4
- [48] NORTH-DAKOTA GRAIN VARIETIES 1978 NORTH DAKOTA COOPERATIVE EXTENSION SERVICE CIRCULAR, 1977, (NA-17): : 1 - 4
- [50] ALFALFA MANAGEMENT IN WESTERN NORTH-DAKOTA NORTH DAKOTA FARM RESEARCH, 1978, 35 (05): : 21 - 24