APA (7th ed.) Citation

U.S. Foreign Service Institute. (1967). Vietnamese, basic course. U.S. Gov't Printing Office.

Chicago Style (17th ed.) Citation

U.S. Foreign Service Institute. Vietnamese, Basic Course. Washington, D.C: U.S. Gov't Printing Office, 1967.

MLA (9th ed.) Citation

U.S. Foreign Service Institute. Vietnamese, Basic Course. U.S. Gov't Printing Office, 1967.