TY  - BOOK
AU  - Lipschutz, Seymour
TI  - Theory and problems of set theory and related topics
SN  - 0-07-038159-3
AV  - SBL QA 248  L57 1998
PY  - 1998///
CY  - Mc Graw-Hill
PB  - New Delhi
ER  -