Burn, R. P. (1985). Groups: A path to geometry. Cambridge University.
Cita Chicago (17th ed.)Burn, R. P. Groups: A Path to Geometry. Cambridge: Cambridge University, 1985.
Cita MLA (9th ed.)Burn, R. P. Groups: A Path to Geometry. Cambridge University, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.