APA (7th ed.) Citation

Hansen, C. C. (1926). World trade in prepared medicines: Siam. [publisher not identified].

Chicago Style (17th ed.) Citation

Hansen, Carl C. World Trade in Prepared Medicines: Siam. Washington, D.C.: [publisher not identified], 1926.

MLA (9th ed.) Citation

Hansen, Carl C. World Trade in Prepared Medicines: Siam. [publisher not identified], 1926.