Balfour, Alexander. [from old catalog]
An introduction to sets, groups, and matrices / A. Balfour. - 2nd ed. - New York ; London Arco ; Heinemann Educational Books, c1966. - 71 p. : ill. ; 22 cm.
Includes index.
0435510606
66014070
Set theory.
Matrices.
QA263 / .B28
517.521 / BAI
An introduction to sets, groups, and matrices / A. Balfour. - 2nd ed. - New York ; London Arco ; Heinemann Educational Books, c1966. - 71 p. : ill. ; 22 cm.
Includes index.
0435510606
66014070
Set theory.
Matrices.
QA263 / .B28
517.521 / BAI