Cite

Steel Mills Along Pittsburgh Lake Erie Railroad. Braddock, Pennsylvania (PB 1162-242)

MLA

Plowden, David. Steel Mills Along Pittsburgh Lake Erie Railroad. Braddock, Pennsylvania (PB 1162-242). 1962. https://collections.library.yale.edu/catalog/2038438.

APA, 6th edition

Plowden, D. (1962). Steel Mills Along Pittsburgh Lake Erie Railroad. Braddock, Pennsylvania (PB 1162-242). https://collections.library.yale.edu/catalog/2038438.