APA

Alexanderson G. L., Larson L. C. & Klosinski L. F. (1985). The William Lowell Putnam Mathematical Competition problems and solutions: 1965-1984. Washington, DC: Mathematical Association of America.

Chicago

Alexanderson Gerald L, Larson Loren C and Klosinski Leonard F. 1985. The William Lowell Putnam Mathematical Competition problems and solutions: 1965-1984. Washington, DC: Mathematical Association of America.

Harvard

Alexanderson G. L., Larson L. C. and Klosinski L. F. (1985). The William Lowell Putnam Mathematical Competition problems and solutions: 1965-1984. Washington, DC: Mathematical Association of America.

MLA

Alexanderson Gerald L, Larson Loren C and Klosinski Leonard F. The William Lowell Putnam Mathematical Competition problems and solutions: 1965-1984. Washington, DC: Mathematical Association of America. 1985.