TY  - BOOK
AU  - Porter, D.N.
TI  - Mass spectrometery of heterocyclic compounds
T2  - General heterocyclic chemistry series
U1  - 547.59 
PY  - 1985///
CY  - New York
PB  - John Wiley & Sons
N1  - Wiley-interscience publicatrions
ER  -