Dyfyniad APA

Sawyer, W. W. (1943). Mathematician's delight. Penguin Books Ltd.

Dyfyniad Arddull Chicago

Sawyer, Walter W. Mathematician's Delight. England: Penguin Books Ltd, 1943.

Dyfyniad MLA

Sawyer, Walter W. Mathematician's Delight. Penguin Books Ltd, 1943.

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