Farnham, Emily, 1912- Charles Demuth : Behind a laughing mask / By Emily Farnham. - [1st ed.] - Norman : University of Oklahoma Press, [1971]. - xvii, 238 p. : [20] l. plates, ports. : ill. ; 23 cm. Includes bibliogr. references : (p. 212-220) and index Subjects--Personal Names: Demuth, Charles, 1883-1935