TY  - BOOK
AU  - Rueff Marcel
AU  -  Jeger Max
TI  - Sets and Boolean algebra. Ed by A G Howson
T2  - Mathematical Studies a Series for Teachers and Students. Ed by David Wheeter.4
U1  - B26, LO 
PY  - 1970///
CY  - London
PB  - Allen and Unwin        
KW  - Matrix
N1  - Bibliography P 190-91
ER  -