This bibliography consolidates into one publication all reports previously published in the EPA Publications Bibliography, Quarterly Abstract Bulletin from its inception in 1977 through 1983. It is published in two parts. Part 1 contains bibliographic citations with abstracts. Part 2 contains seven indexes: Title, Keyword, Sponsoring EPA Office, Corporate Author, Personal Author, Contract/Grant Number and NTIS Order/Report Number. The EPA Cumulative Bibliography, 1970-1976, published in December 1976 (order number PB-265920, price code E99) is a similar publication containing reports generated by EPA and its predecessor agencies and entered into the NTIS collection from 1970 through 1976. It does not include a Sponsoring EPA Office Index. The EPA Publications Bibliography, Quarterly Abstract Bulletin supplements these two cumulations and is published as an ongoing subscription service. These three publications should provide sufficient information for any user to identify any EPA report desired. Copies of individual reports are available in either hard copy or on microfiche. Prices for reports listed with NTIS price codes may be determined by consulting the price code list published in the most recent EPA Publications Bibliography, Quarterly Abstract Bulletin or by requesting a current schedule from NTIS. NTIS will also provide the EPA reports in microfiche as a set, retrospectively or on an ongoing basis, through its Selected Research in Microfiche program. Cost figures may be obtained from NTIS.