TY  - GEN
AU  - Childs,Lindsay
TI  - A concrete introduction to higher algebra
T2  - Undergraduate texts in mathematics
SN  - 9780387745275 (acid-free paper)
U1  - 512 
PY  - 2009///
CY  - New York
PB  - Springer
KW  - Algebra
N1  - Contine bibliogr. si index
ER  -