Norris, P. W. Mechanics via the calculus / by P.W. Norris and W. Seymour Legge. - 3rd rev. and enlarged ed. - New York : Cleaver-Hume Press, 1961. - xii, 367 p. : ill. Reprinted 1953, 1957, 1961. Subjects--Topical Terms: Mechanics.