Washington, D.C. : U.S. Dept. of Energy, Assistant Secretary for Fossil Energy, Office of Coal Technology ; Springfield, Va. : Available from the National Technical Information Service, 1989-
Publication Dates
Fiscal year 1989-
Physical Details
volumes : illustrations ; 28 cm
OCLC
ocm25596551
Vols. for 1989- distributed to depository libraries in microfiche.