1. Long-term effect of density management on growth and yield of true fir (Abies concolor and Abies magnifica) stands in northern California
- Author(s):
- Finley, Kaelyn A.; Zhang, Jianwei
2. Twenty-year tree measurement data from true fir spacing trials in the Pacific Northwest
- Author(s):
- Harrington, Constance
U.S. Department of Agriculture