When you do have time look these up though. Philip Rahv, "Proletarian Literature: A Political Autopsy", Southern Review, 1939. Contained in, "Essays on Literature and Politics, 1932-1972, "ed. Arabel T. Porter and Andrew J. Dvosin (Boston: Houghton Mifflin, 1978), 293-304. The classic, "Writers on the Left, " by Daniel Aaron, reissued by Columbia Univ. Press. Barbara Foley, 'Radical Representations: Politics and Form in U.S. Proletarian Fictions, 1929-1941." (Durham and London: Duke University Press, 1993) "The Radical Novel, " by Walter Rideout, reissued by Columbia Univ. Press.
Paula Rabinowitz Labor and Desire, Women's Revolutionary Fiction in Depression America (Chapel Hill: The University of North Carolina Press, 1991)
Constance Coiner's Better Red: The Writing and Resistance of Tillie Olsen and Meridel Le Sueur (New York and Oxford: Oxford University Press, 1995)