TY  - BOOK
AU  - Breuer, Joseph
AU  - Fehr, Howard F.
TI  - INTRODUCTION TO THE THEORY OF SETS
U1  - 511.7 
PY  - 1964///
CY  - Englewood Cliffs, N. J.
PB  - Prentice-Hall
KW  - Aggregates
ER  -