Johnson, Ronald C. (Ronald Charles) Child psychology: behavior and development / [by] Ronald C. Johnson [and] Gene R. Medinnus. - New York : J. Wiley, [1965] Includes bibliographies. LCCN: 65010955 //r882 Subjects--Topical Terms: Child psychology. LC Class. No.: BF721 / .J53 Dewey Class. No.: 136.7