Klamkin, M. S. (1978). International Mathematical Olympiads 1959-1977. Mathematical Association of America.
Cita Chicago (17th ed.)Klamkin, Murray S. International Mathematical Olympiads 1959-1977. Washington, DC: Mathematical Association of America, 1978.
Cita MLA (9th ed.)Klamkin, Murray S. International Mathematical Olympiads 1959-1977. Mathematical Association of America, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.