APA (7th ed.) Citation

Groves, L. R. (1962). Now it can be told: The story of the Manhattan project. Harper.

Chicago Style (17th ed.) Citation

Groves, Leslie R. Now It Can Be Told: The Story of the Manhattan Project. New York: Harper, 1962.

MLA (9th ed.) Citation

Groves, Leslie R. Now It Can Be Told: The Story of the Manhattan Project. Harper, 1962.