TY  - BOOK
AU  - Howe Ian
AU  -  Bowen R D
AU  -  William D H
TI  - Mass spectrometry: Principles and applications
U1  - E:3,T5, M1 
PY  - 1981///
CY  - New York    
PB  -  McGraw Hill       
KW  - Chemistry
ER  -