APA (7th ed.) Citation

Richards, J. B. (1926). World trade in prepared medicines: Canada. [publisher not identified].

Chicago Style (17th ed.) Citation

Richards, J. Bartlett. World Trade in Prepared Medicines: Canada. Washington, D.C.: [publisher not identified], 1926.

MLA (9th ed.) Citation

Richards, J. Bartlett. World Trade in Prepared Medicines: Canada. [publisher not identified], 1926.