Tyagi T.S. A study of "perseveration" in psychotics and normals - - Bangalore Dept.of Clinical Psychology,AIIMH 1963 - 50p. 29cm. - . Diploma in M & SP Psychology,Clinical, Perseveration Subjects--Topical Terms: Psychology,ClinicalPerseveration Dewey Class. No.: A2.1 / TYA