00502nam a2200169Ia 450000500170000000800460001703700120006304000200007504100130009508400230010810000220013124500600015326000510021330000130026449000410027765000140031820250508152842.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDLbengcFEDL  aeng2eng  a301.153, LOOqFEDL  aLoomis Charles P. 0aSocial systems : Essays on their persistence and change  aNew Jersey, USAbD. Van Nostrand Companyc1960  axi,349p.  aThe van nostrand series in sociology  aSociology