Tohutoro APA (7th ed.)
Klamkin, M. S. (1978). International Mathematical Olympiads 1959-1977. Mathematical Association of America.
Tohutoru Kātū Chicago (17th ed.)
Klamkin, Murray S. International Mathematical Olympiads 1959-1977. Washington, DC: Mathematical Association of America, 1978.
Tohutoro MLA (9th ed.)
Klamkin, Murray S. International Mathematical Olympiads 1959-1977. Mathematical Association of America, 1978.
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