Hawk, Sara Stinchfield, 1885- Speech disorders ; a psychological study of the various defects of speech. - xii, 341 p. illus. 22 cm. - Cognitive psychology ; v. 20 International library of psychology . - Cognitive psychology ; v. 20. International library of psychology. . LCCN: 33036958 Subjects--Topical Terms: Speech disorders.Cognitive psychology LC Class. No.: RC423. / H38 Dewey Class. No.: 153