TY  - GEN
AU  - Johnston, Bernard L. 
AU  - Richman, Fred, 
TI  - Numbers and symmetry : : an introduction to algebra / 
T2  - Library Edition: Mathematics
SN  - 9780367851897
U1  - 512.02 23rd ed.
PY  - 2020///
CY  - Boca Raton
PB  - CRC Press
KW  - Algebra
N1  - Includes bibliographical references and index
ER  -