Cite

Blast Furnace "Down Comer". Indiana Harbor, Indiana (IS-1257)

MLA

Plowden, David. Blast Furnace "Down Comer". Indiana Harbor, Indiana (IS-1257). 1979. https://collections.library.yale.edu/catalog/2036792.

APA, 6th edition

Plowden, D. (1979). Blast Furnace "Down Comer". Indiana Harbor, Indiana (IS-1257) [Gelatin silver prints, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2036792.