VEBLEN, O. (1910). Projective geometry. Blaisdell.
Chicago-čujuhus (17. p.)VEBLEN, Oswald. Projective Geometry. New York: Blaisdell, 1910.
MLA-čujuhus (9. p.)VEBLEN, Oswald. Projective Geometry. Blaisdell, 1910.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.