REinfield, F. (1957). How to win at checkers. Melvin Powers.
Chicagoスタイル(17版)引用形式REinfield, Fred. How to Win at Checkers. California: Melvin Powers, 1957.
MLA(9版)引用形式REinfield, Fred. How to Win at Checkers. Melvin Powers, 1957.
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