00453cam a22001217a 4500008004000000082001400040100002600054245013300080260002700213300001000240650005000250650003100300180718b1960   xxu||||| |||| 00| 0 eng d  aDx73 H363  aHeilbroner, Robert L.  aFuture as history: the historic currents of our time and the direction in which they are taking Americacby Robert L. Heilbroner  aNew YorkbHarperc1960  a217p.  aUnited States --Relations --Foreign countries  aWorld politics --1945-1989