000 00313nam a2200109Ia 4500
001 MPKV099999
008 120911s9999 xx 000 0 und d
245 _aHandbook of Research Methods iln Child Development
_cMussen Paul H.;
260 _aNew York
_bJohn Wiley
_c1960
300 _aviii
_b1061 pp
365 _b132 /-
999 _c63538
_d63538