APA (7th ed.) Citation

Coolidge, J. L. (1949). The Mathematics of great amateurs. Clarendon Press.

Chicago Style (17th ed.) Citation

Coolidge, Julian Lowell. The Mathematics of Great Amateurs. Oxford: Clarendon Press, 1949.

MLA (9th ed.) Citation

Coolidge, Julian Lowell. The Mathematics of Great Amateurs. Clarendon Press, 1949.

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