TY  - BOOK
AU  - Porter Q N
TI  - Mass spectrometry of heterocyclic compounds
T2  - General heterocyclic chemistry series
U1  - E3051:8, L1;M5 
PY  - 1985///
CY  - New York    
PB  -  John Wiley       
KW  -  Mass spectrometry
KW  - Chemistry
ER  -