TY  - BOOK
AU  - Roethel,Louis F.
TI  - Logic, sets & numbers
SN  - 0534004911
AV  - QA39.2  .R6
PY  - 1976///
CY  - Belmont, Calif.
PB  - Wadsworth
KW  - Mathematics
KW  - 1961
N1  - Includes bibliographical references and index
ER  -