For the Relief of Pittsburgh DuBois Company.

MLA

United States. For the Relief of Pittsburgh DuBois Company. [Place of publication not identified] : [publisher not identified], 1949.

APA

United States. (1949). For the Relief of Pittsburgh DuBois Company. [Place of publication not identified] : [publisher not identified].

Chicago

United States. For the Relief of Pittsburgh DuBois Company. [Place of publication not identified] : [publisher not identified], 1949.