TY  - BOOK
AU  - Childs,Lindsay N.
TI  - A concrete introduction to higher algebra
T2  - Undergraduate texts in mathematics
SN  - 9780387745275
AV  - QA155  .C44 2009
PY  - 2009///
CY  - New York
PB  - Springer
KW  - Algebra
N1  - includes index and bibliographical reference
ER  -