Cite

National Steel Taconite Mine. Minnesota (679-345)

MLA

Plowden, David (1932). National Steel Taconite Mine. Minnesota (679-345). Box 8. 1979 June. https://collections.library.yale.edu/catalog/2036759.

APA, 6th edition

Plowden, David (1932). (["Box 8"])(1979 June)[National Steel Taconite Mine. Minnesota (679-345)]. https://collections.library.yale.edu/catalog/2036759.