APA (7th ed.) Citation

Redecker, S. B. (1927). Sumatra: Economic and commercial survey. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Redecker, Sydney B. Sumatra: Economic and Commercial Survey. [Washington?]: U.S. Government Printing Office, 1927.

MLA (9th ed.) Citation

Redecker, Sydney B. Sumatra: Economic and Commercial Survey. U.S. Government Printing Office, 1927.