Pipes, Louis Albert, 1910- Operational methods in nonlinear mechanics/ by Louis A. Pipes. - New York: Dover, [1965]. - viii, 99 p.: illus., 22 cm. LCCN: 65015516 //r84 Subjects--Topical Terms: Nonlinear mechanicsDifferential equations, Nonlinear. Dewey Class. No.: 515.35 / P665o