00400pab a2200133 454500008004000000100002100040245010800061260000900169300001200178362000900190650002600199700002300225773001800248180718b1986   xxu||||| |||| 00| 0 eng d  aKerbo, Harold R.  aUmemployment and protest in the United States, 1890 - 1940bA methodological critique and research note  c1986  a1046-56  aJune  aUnemployment - U.S.A.  aRichard A. Shaffer  aSocial Forces