APA (7th ed.) Citation

(1966). Letters from Viet Nam. Parallax Publ. [u.a.].

Chicago Style (17th ed.) Citation

Letters from Viet Nam. New York: Parallax Publ. [u.a.], 1966.

MLA (9th ed.) Citation

Letters from Viet Nam. Parallax Publ. [u.a.], 1966.

Warning: These citations may not always be 100% accurate.