Busch, Christopher S. "Overcome by Cain: Human Nature's Inner Battle in Steinbeck's 'Strike' Novel." The Betrayal of Brotherhood in the Work of John Steinbeck: Cain Sign. Ed. Michael J. Meyer. Lewiston, NY: Edwin Mellen P, 2000. 183-201.
Cassuto, David N. "The Evil Other and the Migrant Movement: Cain Sign in In Dubious Battle." The Betrayal of Brotherhood in the Work of John Steinbeck: Cain Sign. Ed. Michael J. Meyer. Lewiston, NY: Edwin Mellen P, 2000. 163-81.
Hedley, George P. The Strike As I Have Seen It: An Address before the Church Council for Social Education, Berkeley, California, July 19, 1934. San Francisco: Conference for Labor's Civil Rights, [1934?]. Hedley describes his experience of the longshoreman's strike on the San Francisco waterfront and the resulting violent crackdown by police. Steinbeck mentions this strike in "In Dubious Battle," and it was an inspiration to his writing it. This item is held in the Steinbeck Center (MLA).
Saxton, Alexander. "In Dubious Battle: Looking Backward." Pacific Historical Review 73.2 (May 2004): 249-62.
Wyatt, David. "Steinbeck's Light." Southern Review 38.2 (Spring 2002): 399-412.
Benson, Jackson. John Steinbeck, Writer. New York: Penguin, 1984.
Marsh, Fred T. "In Dubious Battle and Other Recent Works of Fiction." New York Times 2 Feb 1936: BR7. ProQuest Historical Newspapers The New York Times (1851-2006). ProQuest. Web. 15 Jul 2009.
Perez, Betty L. "Steinbeck's 'In Dubious Battle' (1936)." A Study Guide to Steinbeck: A Handbook to his Major Works. Ed. Tetsumaro Hayashi. Metuchen: The Scarecrow Press, 1974. 47-68.
"Recommended." The Washington Post (1877-1954) 9 Feb. 1936: B8. ProQuest Historical Newspapers The Washington Post (1877 - 1993). ProQuest. Web. 15 Jul. 2009.
Steinbeck, John. In Dubious Battle. New York: Penguin Books, 2006.