000 003930000a22001570004500
008 140223b1975 xxu||||| |||| 00| 0 eng d
041 _aEng
080 _aS8y8 L5
082 _aS8y8 L5
100 _aMarwell GErald
700 _aSchmitt David R
245 _aCooperation:Experimental analysis
260 _aNew York
_bAcademic
_c1975
650 _aPsychology
650 _aSocial Psychology
999 _c47071
_d47071