TY - BOOK AU - Kilpatrick, William Heard. AU - ED - ED - ED - ED - SN - 2 PY - 1963///.;copyright 196346 CY - New York PB - Macmillan KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Philosophy KW - Education N1 - 5; Professional ER -