1
Five hundred mathematical challenges / [E-Book]
Other Personal Name(s): ...Klamkin, Murray S....

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2
U.S.A. Mathematical Olympiads, 1972-1986 / [E-Book]
Other Personal Name(s): ...Klamkin, Murray S....

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3
International Mathematical Olympiads 1978-1985 : and forty supplementary problems [E-Book] /
4
International Mathematical Olympiads 1959-1977 / [E-Book]
Other Personal Name(s): ...Klamkin, Murray S....

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