Rees, P. K. (1969). Algebra and trigonometry (2nd ed.). McGraw-Hill Book Co., Inc.
Dyfyniad Arddull ChicagoRees, Paul K. Algebra and Trigonometry. 2nd ed. New York: McGraw-Hill Book Co., Inc, 1969.
Dyfyniad MLARees, Paul K. Algebra and Trigonometry. 2nd ed. McGraw-Hill Book Co., Inc, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.