National Arboretum contribution.
- Publisher: Agricultural Research Service, U.S. Dept. of Agriculture; for sale by the Supt. of Docs., U.S. Govt. Print. Off.
- Print ISSN: 0509-8297
- Electronic ISSN:
- OCLC Number: 1252206
- Subject: Botany
- Subject code: QK
- Publication history: no. 1-
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | no.1-4 1953-1977; no.1-6 1953-1992; no.2; no.3; no.7 1994 | permanent |