APA (7th ed.) Citation

Walker, J. (1928). Market in western Venezuela for American sporting goods. [publisher not identified].

Chicago Style (17th ed.) Citation

Walker, Jay. Market in Western Venezuela for American Sporting Goods. Washington, D.C.: [publisher not identified], 1928.

MLA (9th ed.) Citation

Walker, Jay. Market in Western Venezuela for American Sporting Goods. [publisher not identified], 1928.