Buchanan, O. Lexton. Limits : a transition to calculus / O. Lexton Buchanan, Jr., Albert E. Meder, Jr., editorial adviser. - Boston : Houghton Mifflin, 1966. - iv, 186 p. ; 23 cm. - Houghton Mifflin modern mathematics series . Includes index. Subjects--Topical Terms: Calculus.Sequences (Mathematics).