De Baggis, Henry F., 1916- Foundations of the calculus [by] Henry F. DeBaggis [and] Kenneth S. Miller. - Philadelphia : Saunders, 1966. - xiii, 232 p. : ill. ; 25 cm. Bibliography: p. 216. Subjects--Topical Terms: Calculus. Dewey Class. No.: 515 / DEF 1966