共 14 条
- [1] ANDERSON S, 1950, KGD VET LANDBOHJSKOL
- [2] DAVIDSON JG, 1949, 6TH ANN N CENTR WEED, P103
- [3] DERSCHEID LA, 1951, 8TH ANN NCWCC, P54
- [4] FOSTER JR, 1949, 6TH ANN N CENTR WEED, P105
- [5] FRIESEN GEORGE, 1953, CANADIAN JOUR AGRIC SCI, V33, P315
- [6] KUSCH AG, 1947, 4TH P ANN NCWCC, P219
- [7] OLSON PJ, 1949, 6TH ANN NCWCC, P109
- [8] OLSON PJ, 1952, 9TH ANN NCWCC, P73
- [9] ROBINSON RD, 1950, 7TH ANN NCWCC, P78
- [10] SHAFER NE, 1953, 10TH ANN NCWCC, P79