Wenninger, M. J. (1975). Polyhedron models for the classroom (2d ed.). National Council of Teachers of Mathematics.
Dyfyniad Arddull ChicagoWenninger, Magnus J. Polyhedron Models for the Classroom. 2d ed. Reston, VA: National Council of Teachers of Mathematics, 1975.
Dyfyniad MLAWenninger, Magnus J. Polyhedron Models for the Classroom. 2d ed. National Council of Teachers of Mathematics, 1975.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.