Sinclair, U. (1915). The cry for justice: An anthology of the literature of social protest; the writings of philosophers, poets, novelists, social reformers, and others who have voiced the struggle against social injustice, selected from twenty-five languages, covering a period of five thousand years. Philadelphia: The John C. Winston Company.

Sinclair, Upton. The Cry for Justice: An Anthology of the Literature of Social Protest; the Writings of Philosophers, Poets, Novelists, Social Reformers, and Others Who Have Voiced the Struggle against Social Injustice, Selected From Twenty-five Languages, Covering a Period of Five Thousand Years. Philadelphia: The John C. Winston Company, 1915.

Sinclair, Upton. The Cry for Justice: An Anthology of the Literature of Social Protest; the Writings of Philosophers, Poets, Novelists, Social Reformers, and Others Who Have Voiced the Struggle against Social Injustice, Selected From Twenty-five Languages, Covering a Period of Five Thousand Years. Philadelphia: The John C. Winston Company, 1915.