A list of business histories and biographies in the business library, Dun & Bradstreet, inc. September 1, 1949.

MLA

Dun and Bradstreet, inc. A list of business histories and biographies in the business library, Dun & Bradstreet, inc. September 1, 1949. New York, [publisher not identified], [1949]

APA

Dun and Bradstreet, I. (1949). A list of business histories and biographies in the business library, Dun & Bradstreet, inc. September 1, 1949. New York, [publisher not identified].

Chicago

Dun and Bradstreet, inc. A list of business histories and biographies in the business library, Dun & Bradstreet, inc. September 1, 1949. New York, [publisher not identified], [1949]