Spofford, Charles M. 1871- The theory of structures / by Charles M. Spofford - 2d ed.--rev. and enl. - New York [etc.] McGraw-Hill Book Company, inc., 1915. - xv, 483 p. illus., diagrs. 24 cm. Subjects--Topical Terms: ANALISIS ESTRUCTURAL Universal Decimal Class. No.: 624.04