00261nam a2200109 a 4500041000800000082001800008100002200026245003700048260004200085300001000127650001400137  aeng  a335.4bP37r31  aPetersen, William  aThe realities of world communism  aEnglewood CliffsbPrentice-Hallc1963  a222 p  aCOMUNISMO