APA

(1947). The Panama Canal societies of the United States: Souvenir yearbook and directory. [Washington?]: .

Chicago

1947. The Panama Canal societies of the United States: Souvenir yearbook and directory. [Washington?]: .

Harvard

(1947). The Panama Canal societies of the United States: Souvenir yearbook and directory. [Washington?]: .

MLA

The Panama Canal societies of the United States: Souvenir yearbook and directory. [Washington?]: . 1947.