APA (7th ed.) Citation

Foulke, R. A. (1941). The sinews of American commerce. [publisher not identified].

Chicago Style (17th ed.) Citation

Foulke, Roy Anderson. The Sinews of American Commerce. [New York]: [publisher not identified], 1941.

MLA (9th ed.) Citation

Foulke, Roy Anderson. The Sinews of American Commerce. [publisher not identified], 1941.