References
- Barnhart , J. D. 1925 . Rainfall and the Populist Party in Nebraska . Amer. Polit. Sci. Rev. , 19 : 527 – 540 .
- Dollard , J. , Doob , L. W. , Miller , N. E. , Mowrer , O. H. and Sears , R. R. 1939 . Frustration and Aggression , New Haven : Yale Univ. Press .
- Marshall , R. 1927 . Precipitation and presidents . The Nation , 124 : 315 – 316 .
- Raper , A. 1933 . The Tragedy of Lynching , Chapel Hill : Univ. North Carolina Press .
- Sears , R. R. and Sears , P. S. 1940 . Minor studies of aggression: V. Strength of frustration-reaction as a function of strength of drive . J. of Psychol , 9 : 297 – 300 .
- Southern Commission on the Study of Lynching . 1932 . Lynchings and what they mean , Atlanta (Ga.) : The Commission . No date, c.
- Thomas , D. S. 1925 . Social Aspects of the Business Cycle , New York : Dutton .