Widder, D. V. 1898-1990. Advanced calculus / David V. Widder. - 2nd ed. - New York : Dover Publications, 1989. - xvi, 520 p. : ill. ; 22 cm. Includes indexes. ISBN: 0486661032 9780486661032 Ksh 5,200/= Subjects--Topical Terms: Calculus. LC Class. No.: QA 303 / .W5 1989