Ostebee, Arnold. Calculus from graphical, numerical, and symbolic points of view / Arnold Ostebee and Paul Zorn. - Prelim. ed. - Fort Worth : Saunders College Publishing, c1994. - 374 p. : ill. ; 28 cm. Includes index. ISBN: 0030987326 (v.2) Subjects--Topical Terms: Calculus.