Alker, H. R. (1965). Mathematics and politics. Macmillan.
Tohutoru Kātū Chicago (17th ed.)Alker, Hayward R. Mathematics and Politics. Nueva York: Macmillan, 1965.
Tohutoro MLA (9th ed.)Alker, Hayward R. Mathematics and Politics. Macmillan, 1965.
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