00333nam a2200121Ia 4500008004100000040001600041041001200057082001600069100002400085245005400109260003100163300001700194230917s9999||||xx |||||||||||||| ||und||  e81711aMAIN  aEnglish  a372.21 S61H  aSpodek, Bernard, ed 0aHandbook of research in early childhood education  aNew YorkbFree Pressc1982  axxiv, 677 p.