| Author | : Robert R. Alexander |
| Publisher | : |
| Total Pages | : 12 |
| Release | : 1986 |
| Genre | : Engelmann spruce |
| ISBN | : |
Engelmann Spruce Seed Dispersal in the Central Rocky Mountains
| Author | : Robert R. Alexander |
| Publisher | : |
| Total Pages | : 4 |
| Release | : 1983 |
| Genre | : Engelmann spruce |
| ISBN | : |
Silvics of North America: Conifers
| Author | : Russell M. Burns |
| Publisher | : |
| Total Pages | : 686 |
| Release | : 1990 |
| Genre | : Forest ecology |
| ISBN | : |
Silvics of North America
| Author | : Russell M. Burns |
| Publisher | : |
| Total Pages | : 688 |
| Release | : 1990 |
| Genre | : Forest ecology |
| ISBN | : |
The Woody Plant Seed Manual
| Author | : United States. Forest Service |
| Publisher | : Forest Service |
| Total Pages | : 1240 |
| Release | : 2008 |
| Genre | : Gardening |
| ISBN | : |
