Cite

Supt. Balmer and Mr. Venning at Pipestone quarry

MLA

Supt. Balmer and Mr. Venning at Pipestone Quarry. 0AD. https://collections.library.yale.edu/catalog/2014838.

APA, 6th edition

Supt. Balmer and Mr. Venning at Pipestone quarry. (0 C.E.). [Photograph albums, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2014838.