MLA
Briel & Co. (Des Moines, Iowa). Student Volunteer Convention, Colored Delegates, Des Moines, Iowa, December 31, 1919-January 4, 1920 [panorama]. 1919 to 1920. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/764gmsbcdk-cor.
APA, 6th edition
Briel & Co. (Des Moines, Iowa). (1919 to 1920)[Student Volunteer Convention, Colored Delegates, Des Moines, Iowa, December 31, 1919-January 4, 1920 [panorama]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/764gmsbcdk-cor.
Chicago
Briel & Co. (Des Moines, Iowa), Student Volunteer Convention, Colored Delegates, Des Moines, Iowa, December 31, 1919-January 4, 1920 [panorama], 1919 to 1920, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/764gmsbcdk-cor.