| Publication Type: | Journal Article |
| Year of Publication: | Submitted |
| Authors: | R. A. Roberts |
| Volume: | 365 |
| Pagination: | 1 - 21 |
| Short Title: | Technical Bulletin of the United States Department of Agriculture |
| Publication Type: | Journal Article |
| Year of Publication: | Submitted |
| Authors: | R. A. Roberts |
| Volume: | 365 |
| Pagination: | 1 - 21 |
| Short Title: | Technical Bulletin of the United States Department of Agriculture |