APA (7th ed.) Citation

Hill, K. M. (1929). World trade in synthetic aromatics: Switzerland. [publisher not identified].

Chicago Style (17th ed.) Citation

Hill, Kenneth Miller. World Trade in Synthetic Aromatics: Switzerland. Washington, D.C.: [publisher not identified], 1929.

MLA (9th ed.) Citation

Hill, Kenneth Miller. World Trade in Synthetic Aromatics: Switzerland. [publisher not identified], 1929.