共 50 条
- [24] Forest industry investment in tree improvement - a wise business decision or a bottomless pit? Answers from a new tree improvement valuation model for Alberta, Canada FORESTRY CHRONICLE, 2017, 93 (01): : 38 - 43
- [29] FOREST TREE IMPROVEMENT PROGRESS VARIES WITH REGION AND SPECIES TAPPI, 1982, 65 (03): : 63 - 65