Robison, J. (1973). Modern Algebra & Drigonomentry. McGraw Hill.
Dyfyniad Arddull ChicagoRobison, J. Modern Algebra & Drigonomentry. New York: McGraw Hill, 1973.
Dyfyniad MLARobison, J. Modern Algebra & Drigonomentry. McGraw Hill, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.