Armstrong, M. A. (1988). Groups and symmetry. Springer-Verlag.
Chicago Edition CitationArmstrong, M. A. Groups and Symmetry. New York: Springer-Verlag, 1988.
Cita MLAArmstrong, M. A. Groups and Symmetry. Springer-Verlag, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.