TY - BOOK AU - Armstrong M A TI - Groups and symmetry T2 - Undergraduate texts in mathematics SN - 0387966757 (hbd) U1 - B27, M8 TB PY - 1988/// CY - New York PB - Springer-Verlag KW - Groups KW - Symmetry KW - Mathematics N1 - Bibliography p181.; Index 183-186p ER -