The Pine trees of the Rocky Mountain region
| Image |  |
|---|---|
| Description | Washington, D.C.: U.S. Dept. of Agriculture, 1917. |
| Author/s |
author: George Bishop Sudworth illustrator: Annie E. Hoyle |
| Publication date | 1917 |
| Language | English |
| Country of origin | |
| Wikipedia link | |
| Access work | |
| Copyright status |
public domain in countries with 80 years pma or shorter. public domain in United States. |
| Missing/wrong data? | Edit Wikidata item |