Revision of the flora of the Green River formation, with descriptions of new species
| Image |  |
|---|---|
| Description | article |
| Author/s |
author: Frank Hall Knowlton |
| Publication date | 1923 |
| Language | English |
| Country of origin | |
| Wikipedia link | |
| Copyright status |
public domain in countries with 80 years pma or shorter. public domain in United States. |
| Missing/wrong data? | Edit Wikidata item |