Labcert bulletin / United States Environmental Protection Agency, Office of Ground Water and Drinking Water, Technical Support Division.

FrequencyIrregular
General noteDistributed to depository libraries in microfiche, Aug. 1994-Jan. 2000.
General noteDescription based on: Aug. 1991; title from caption.
General noteLatest issue consulted: June 1997.
General noteGPO Cataloging Record Distribution Program (CRDP).
Other formsSome issues also available via Internet from the EPA web site. Address as of 4/24/03: http://www.epa.gov/ogwdw000/certlab/labcint.html; current access is available via PURL.
LCCNsn 92017611
GPO item number0473-A-01
GPO item number0483-E-01
GPO item number0473-A-11
GPO item number0473-A-11 (online)
Govt. docs number EP 2.2:L 11/
Govt. docs number EP 2.2:L 11/2/
Govt. docs number EP 2.3/4: EP 4.2:L 11/
Stock numberU.S. EPA, Office of Ground Water and Drinking Water, Cincinnati, OH 45268