APA-čujuhus (7. p.)

GREENBERG, M. J. (1974). Euclidean and non-euclidean geometries. W.H.Freeman and co.

Chicago-čujuhus (17. p.)

GREENBERG, Marvin Jay. Euclidean and Non-euclidean Geometries. San Francisco: W.H.Freeman and co, 1974.

MLA-čujuhus (9. p.)

GREENBERG, Marvin Jay. Euclidean and Non-euclidean Geometries. W.H.Freeman and co, 1974.

Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.