Dyfyniad APA

Leff, L. S. (1997). Barron's geometry the easy way (Third edition.). Barron's Educational Series.

Dyfyniad Arddull Chicago

Leff, Lawrence S. Barron's Geometry the Easy Way. Third edition. New York: Barron's Educational Series, 1997.

Dyfyniad MLA

Leff, Lawrence S. Barron's Geometry the Easy Way. Third edition. Barron's Educational Series, 1997.

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