Burn, R. P. (1985). Groups: A path to geometry. Cambridge University.
Chicago-čujuhus (17. p.)Burn, R. P. Groups: A Path to Geometry. Cambridge: Cambridge University, 1985.
MLA-čujuhus (9. p.)Burn, R. P. Groups: A Path to Geometry. Cambridge University, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.