Johnson, D. B. (2001). Mathematics: A practical odyssey. Pacific Grove, California: Brooks/Cole.
Dyfyniad Arddull ChicagoJohnson, David Bruce. Mathematics: A Practical Odyssey. Pacific Grove, California: Brooks/Cole, 2001.
Dyfyniad MLAJohnson, David Bruce. Mathematics: A Practical Odyssey. Pacific Grove, California: Brooks/Cole, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.