APA-čujuhus (7. p.)
Klamkin, M. S. (1978). International Mathematical Olympiads 1959-1977. Mathematical Association of America.
Chicago-čujuhus (17. p.)
Klamkin, Murray S. International Mathematical Olympiads 1959-1977. Washington, DC: Mathematical Association of America, 1978.
MLA-čujuhus (9. p.)
Klamkin, Murray S. International Mathematical Olympiads 1959-1977. Mathematical Association of America, 1978.
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