44 Inch Cold Strip Mill, Steel Mill. East Chicago, Indiana (IS-515)
MLA
Plowden, David (1932). 44 Inch Cold Strip Mill, Steel Mill. East Chicago, Indiana (IS-515). Box 10. 1979. https://collections.library.yale.edu/catalog/2036789.
APA, 6th edition
Plowden, David (1932). (["Box 10"])(1979)[44 Inch Cold Strip Mill, Steel Mill. East Chicago, Indiana (IS-515)]. https://collections.library.yale.edu/catalog/2036789.