TY - RPRT TI - 1983 cumulative indexes to EPANIH mass spectral data base AU - Heller, Stephen R AU - Milne, G W A AU - Gevantman, L H PY - 1980 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS NSRDS 63indx DO - 10.6028/NBS.NSRDS.63indx ER -