APA (7th ed.) Citation

Kral, J. J. (1917). Methods of computing values in foreign trade statistics. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Kral, J. J. Methods of Computing Values in Foreign Trade Statistics. [Washington?]: U.S. Government Printing Office, 1917.

MLA (9th ed.) Citation

Kral, J. J. Methods of Computing Values in Foreign Trade Statistics. U.S. Government Printing Office, 1917.