TY - RPRT TI - Selected tables of atomic spectra - A atomic energy levels-second edition, B multiplet tables : N I, N II, N III - data derived from the analyses of optical spectra AU - Moore, Charlotte E PY - 1975 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS NSRDS 3sec5 DO - 10.6028/NBS.NSRDS.3sec5 ER -