Zi ran zi yuan =
- Publisher: Ke xue chu ban she
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 9121014
- Subject: Natural resources Periodicals.
- Subject code: H
- Publication history:
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1981 no.1-4; 1982 no.1-4; 1983 no.1-4; 1984 no.1-4; 1985 no.1-4; 1986 no.1-4; 1987 no.1-4 | permanent |
| Linda Hall Library of Science, Engineering & Technology (LHL) | Linda Hall Library of Science, Engineering & Technology | 1982 n2-4; no. 1 (1997) -no. 6 (1997) |