00284nam a2200109Ia 4500008004100000041000800041082002200049100002000071245003900091260003500130300000900165230411s9999    xx            000 0 und d  aeng  aSO/301/SOR/B00790  aSorokin Pitirim  aContemporary Sociological Theories  bHarper CollinsaNew Yorkc1928  a783p