APA (7th ed.) Citation

Bush, L. E. (1961). The William Lowell Putnam mathematical competition. American Mathematical Monthly.

Chicago Style (17th ed.) Citation

Bush, L. E. The William Lowell Putnam Mathematical Competition. [Washington]: American Mathematical Monthly, 1961.

MLA (9th ed.) Citation

Bush, L. E. The William Lowell Putnam Mathematical Competition. American Mathematical Monthly, 1961.

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