Rucker, R. v. B. (1977). Geometry, relativity and the fourth dimension. Dover.
Chicago-čujuhus (17. p.)Rucker, Rudolf v. B. Geometry, Relativity and the Fourth Dimension. Nueva York: Dover, 1977.
MLA-čujuhus (9. p.)Rucker, Rudolf v. B. Geometry, Relativity and the Fourth Dimension. Dover, 1977.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.