00293nam a2200109Ia 4500008004100000082001700041100004100058245003200099250001200131264003000143300001000173200526s9999||||xx |||||||||||||| ||und||  a649.1  LAN R  aLangford, Louise M. , Rand, Helen Y. 0aGuidance of the Young Child  a2nd ed.  bJohn Wiley and Sonsc1975  a281p.