Burn, Joseph Elements of finite differences, also solutions to questions : set for part i. of the examinations of the Institute of actuaries / by J. Burn and E. H. Brown. - London : Charles and Edwin Layton, 1902. - 259 p. ; 22 cm. Subjects--Topical Terms: Calculus. Dewey Class. No.: 515.62 / BUE 1902