TY  - GEN
AU  - Porter, Q. N.
TI  - Massspectrometry of heterocyclic compounds
SN  - 0471099015
U1  - 547.5905 
PY  - 1985///
CY  - New York
PB  - John Wiley and Sons
KW  - Chemistry
KW  - Hydrocyclic compounds
N1  - Includes references and index
ER  -