APA (7th ed.) Citation

Wilkinson, J. R. (1930). Finnish market for photographic cameras, films and paper. [publisher not identified].

Chicago Style (17th ed.) Citation

Wilkinson, James R. Finnish Market for Photographic Cameras, Films and Paper. Washington, D.C.: [publisher not identified], 1930.

MLA (9th ed.) Citation

Wilkinson, James R. Finnish Market for Photographic Cameras, Films and Paper. [publisher not identified], 1930.