TY  - BOOK
AU  - Balfour,A.
TI  - An introduction to sets, groups, and matrices
AV  - QA263 .B28
U1  - 512.8 
PY  - 1965///]
CY  - New York
PB  - Arco
KW  - Set theory
KW  - Matrices
UR  - http://www.archive.org/details/introductiontose00balf
UR  - http://www.openlibrary.org/books/OL24210992M
ER  -