Cite

Centennial Exhibition (1876: Philadelphia, Pennsylvania)

MLA

Heller, Alfred E. Centennial Exhibition (1876: Philadelphia, Pennsylvania). 1985. https://collections.library.yale.edu/catalog/2029220.

APA, 6th edition

Heller, A. E. (1985). Centennial Exhibition (1876: Philadelphia, Pennsylvania). https://collections.library.yale.edu/catalog/2029220.