APA (7th ed.) Citation

Ewing, W. (1920). Construction materials and machinery in Argentina and Bolivia. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Ewing, W. Construction Materials and Machinery in Argentina and Bolivia. [Washington?]: U.S. Government Printing Office, 1920.

MLA (9th ed.) Citation

Ewing, W. Construction Materials and Machinery in Argentina and Bolivia. U.S. Government Printing Office, 1920.