00575cam a2200169 a 4500008004100000020001500041100002200056245011400078260005100192300002600243650002200269650002300291650002300314650002600337700002000363050002200383001201s2000    nyua     b    001 0 eng d  a07668204831 aAllen, K. Eileen,10aBy the ages :bbehavior & development of children pre-birth through eight /cK. Eileen Allen, Lynn R. Marotz.  aAlbany, NY :bDelmar Thomson Learning,cc2000.  axii, 244 p. :bill. ; 0aChild psychology. 0aInfant psychology. 0aChild development. 0aInfantsxDevelopment.1 aMarotz, Lynn R.00aBF 721b.A55 2000