APA (7th ed.) Citation

Ramsay, H. F. (1931). Swiss market for playing cards. [publisher not identified].

Chicago Style (17th ed.) Citation

Ramsay, Hugh F. Swiss Market for Playing Cards. Washington, D.C.: [publisher not identified], 1931.

MLA (9th ed.) Citation

Ramsay, Hugh F. Swiss Market for Playing Cards. [publisher not identified], 1931.