The 2222 references in this bibliography on in-situ gasification of coal were selected from the Energy Data Base (EDB) produced by the Office of Scientific and Technical Information (OSTI). New citations on this subject are announced semimonthly in the bulletin Coal-Based Synfuels and monthly in Fossil Energy Update, both published by OSTI. The Energy Data Base is available for on-line searching using the DOE/RECON system or the DIALOG commercial on-line retrieval system. Abstracts in this bibliography are sorted first by year of publication and then by first author. Five indexes are provided: Corporate Author, Personal Author, Subject, Contract Number, and Report Number.