Dyfyniad APA

Lockwood, J. R., & Runion, G. E. (1978). Deductive systems: Finite and non-euclidean geometries. National Council of Teachers of Mathematics.

Dyfyniad Arddull Chicago

Lockwood, James R., and G E. Runion. Deductive Systems: Finite and Non-euclidean Geometries. Reston, VA: National Council of Teachers of Mathematics, 1978.

Dyfyniad MLA

Lockwood, James R., and G E. Runion. Deductive Systems: Finite and Non-euclidean Geometries. National Council of Teachers of Mathematics, 1978.

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