Sinclair, Upton (1878-1968)

American socialist triptych : the literary-political work of Charlotte Perkins Gilman, Upton Sinclair, and W.E.B. Du Bois by: Van Wienen, Mark W; Sinclair, Upton (1878-1968); Project Muse; Du Bois, W. E. B.(William Edward Burghardt) (1868-1963); Gilman, Charlotte Perkins (1860-1935) (Electronic resources)