Ii, W. B. L. (1978). Mathematics for General Education. Belmont, California: Dickenson.
Dyfyniad Arddull ChicagoIi, Walter B. Laffer. Mathematics for General Education. Belmont, California: Dickenson, 1978.
Dyfyniad MLAIi, Walter B. Laffer. Mathematics for General Education. Belmont, California: Dickenson, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.