Steel Mill, Basic Oxygen Furnace (IS-2171)
MLA
Plowden, David. Steel Mill, Basic Oxygen Furnace (IS-2171). 1979. https://collections.library.yale.edu/catalog/2042169.
APA, 6th edition
Plowden, D. (1979). Steel Mill, Basic Oxygen Furnace (IS-2171). https://collections.library.yale.edu/catalog/2042169.