APA (7th ed.) Citation

Snyder, L. L. (1955). Fifty major documents of the twentieth century. Van Nostrand.

Chicago Style (17th ed.) Citation

Snyder, Louis Leo. Fifty Major Documents of the Twentieth Century. Princeton, New Jersey: Van Nostrand, 1955.

MLA (9th ed.) Citation

Snyder, Louis Leo. Fifty Major Documents of the Twentieth Century. Van Nostrand, 1955.