MLA
Heard, William H. (William Henry), 1850-1937. The missionary fields of West Africa : illustrated. 1910. African American Imprints Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/467jq2bwvk-cor.
APA, 6th edition
Heard, William H. (William Henry), 1850-1937. (1910)[The missionary fields of West Africa : illustrated]. African American Imprints Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/467jq2bwvk-cor.
Chicago
Heard, William H. (William Henry), 1850-1937, The missionary fields of West Africa : illustrated, 1910, African American Imprints Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/467jq2bwvk-cor.