?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Dellis&rft.aufirst=Andrew&rft.issue=2&rft.volume=44&rft.date=June+2014&rft.atitle=Criterion-related+and+construct+validity+of+the+Problem+Gambling+Severity+Index+in+a+sample+of+South+African+gamblers&rft.title=South+African+Journal+of+Psychology&rft.pages=243-257&rft.genre=article