Boyd, James E. 1863-1950. Mechanics; a textbook for engineers/ by James E. Boyd. - 1st ed. - New York: McGraw-Hill, 1921. - xiv, 417 p.: illus., diagrs., 24 cm. LCCN: 21016196 Subjects--Topical Terms: Mechanics, Applied Dewey Class. No.: 620.1 / B789m