APA (7th ed.) Citation

Coolidge, J. L. (1949). The mathematics of great amateurs. Dover.

Chicago Style (17th ed.) Citation

Coolidge, Julian Lowell. The Mathematics of Great Amateurs. New York: Dover, 1949.

MLA (9th ed.) Citation

Coolidge, Julian Lowell. The Mathematics of Great Amateurs. Dover, 1949.

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