000 00439cam a22001217a 4500
008 180718b1966 xxu||||| |||| 00| 0 eng d
082 _aB1 P697
100 _aPlatt, John Rader
245 _aStep to man:this book is concered with the evolving nature of man, social and intellectual, what he and what he may become.
_cby John Rader Platt
260 _aNew York
_bJohn Wiley & Sons
_c1966
300 _a216p
650 _aSocial change.Progress.
999 _c416906
_d416906