Cite

1. Arab Slave Traders in the Congo. Unidentified photographer.

MLA

Allsworth, Jenny. 1. Arab Slave Traders in the Congo. Unidentified Photographer. 1887. https://collections.library.yale.edu/catalog/32500150.

APA, 6th edition

Allsworth, J. (1887). 1. Arab Slave Traders in the Congo. Unidentified photographer. https://collections.library.yale.edu/catalog/32500150.