Tohutoro APA (7th ed.)
Sawyer, W. W. (1943). Mathematician`s Delight (1a.ed.). Penguin books.
Tohutoru Kātū Chicago (17th ed.)
Sawyer, W. W. Mathematician`s Delight. 1a.ed. Michigan: Penguin books, 1943.
Tohutoro MLA (9th ed.)
Sawyer, W. W. Mathematician`s Delight. 1a.ed. Penguin books, 1943.
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