00333cam a22001097a 4500008004000000082001500040100002600055245006200081260002900143300001000172650004100182180718b1969   xxu||||| |||| 00| 0 eng d  aP414 K422b  aKenworthy, Leonard S.  aSocial studies for the seventiescby Leonard S. Kenworthy  aWalthambBalisdellc1969  a530p.  aSocial sciences --Study and teaching