TY  - GEN
AU  - Redfield, Robert H.
TI  - Abstract algebra: a concrete introduction 
SN  - 020143721X
AV  - QA162 .R43 2001
PY  - 2001///
CY  - Boston
PB  - Addison-Wesley Longman
KW  - Algebra, Abstract
N1  - Includes bibliographical references (p. 444-446) and index
ER  -