Weinstock, Robert 1919- Calculus of variations, with applications to physics and engineering / by Robert Weinstock. - 1st ed - New York : McGraw-Hill , 1952. - 326 p. : ill. ; 24 cm. - International series in pure and applied mathematics. . Subjects--Topical Terms: Calculus of variations. Dewey Class. No.: 517.4 WEI