Calculus : multivariable / Smith, Robert T. Minton, Roland B., Calculus. 515 MCG 2002 A058 Or. Boston : McGraw-Hill, c2002. c2002. Text xxviii, 850 p. : http://www.loc.gov/catdir/enhancements/fy0612/2001030156-t.html http://www.loc.gov/catdir/enhancements/fy0612/2001030156-d.html