TY - RPRT TI - NBSEPA Energy Environment Project : semi-annual report to Environmental Protection Agency, Office of Energy, Minerals, and Industry - July-December 1979 AU - Gravatt, C C, PY - 1980 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 80-2048 DO - 10.6028/NBS.IR.80-2048 ER -