TY  - BOOK
AU  - Porter,Q.N.
TI  - Mass spectrometry of heterocyclic compounds  
U1  - 547.59 POR.B  
PY  - 1971///.
CY  - New York : 
PB  - Wiley-Interscience, 
KW  - Mass spectrometry.
KW  - Heterocyclic compounds -- Spectra
KW  - Heterocyclic Compounds.
KW  - Spectrum Analysis.
N1  - Includes index.
ER  -