Dyfyniad APA

Hess, A. L. (1977). Four-dimensional geometry: An introduction. National Council of Teachers of Mathematics.

Dyfyniad Arddull Chicago

Hess, Adrien L. Four-dimensional Geometry: An Introduction. Reston, VA: National Council of Teachers of Mathematics, 1977.

Dyfyniad MLA

Hess, Adrien L. Four-dimensional Geometry: An Introduction. National Council of Teachers of Mathematics, 1977.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.