00446nam a2200157Ia 450000500170000000800460001703700120006304000210007504100130009608400230010910000190013224500590015126000500021030000140026065000140027420250508160731.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDL bengcFEDL  aeng2eng  a301.151, SHAqFEDL  aShaw Marvin E. 0aGroup dynamics: The psychology of small group behavior  aNew York, USAbMcGraw Hill Book Companyc1971  axvii,414p  aSociology