MLA
Gregg, John Andrew, 1877-1953. Africa and a way out : delivered at the Bishop's Council, Baltimore, Md., February 13, 1920, Bethel A.M.E. Church. 1920. African American Imprints Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/866vx0k77d-cor.
APA, 6th edition
Gregg, John Andrew, 1877-1953. (1920)[Africa and a way out : delivered at the Bishop's Council, Baltimore, Md., February 13, 1920, Bethel A.M.E. Church]. African American Imprints Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/866vx0k77d-cor.
Chicago
Gregg, John Andrew, 1877-1953, Africa and a way out : delivered at the Bishop's Council, Baltimore, Md., February 13, 1920, Bethel A.M.E. Church, 1920, African American Imprints Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/866vx0k77d-cor.