Levinson, Irving J. Introduction to mechanics / by Irving J. Levinson. - 2d ed. - Englewood Cliffs, N.J. : Prentice-Hall , 1968. - xii, 346 p. : illus. ; 24 cm. LCCN: 68-020859 Subjects--Topical Terms: Mechanics, Applied.-------- Dewey Class. No.: 621 LEV