ROOM, T. Background to geometry: Natural, synthetic and algebraic. cambridge Univ. Press.
Chicago-čujuhus (17. p.)ROOM, T.G. Background to Geometry: Natural, Synthetic and Algebraic. London: cambridge Univ. Press.
MLA-čujuhus (9. p.)ROOM, T.G. Background to Geometry: Natural, Synthetic and Algebraic. cambridge Univ. Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.