TY  - BOOK
AU  - Neumann, Hanna
TI  - Varieties of groups
U1  - 512.86 NEU 
PY  - 1967///
CY  - Berlin
PB  - Springer - Verlag
KW  - Groups theory
KW  - Algebra, Universal
N1  - Includes Bibliography: p. 181 - 186
ER  -