Cita APA (7a ed.)
Horne, S. (1970). Patterns and puzzles in mathematics. Lyons and carnhan.
Cita Chicago Style (17a ed.)
Horne, Sylvia. Patterns and Puzzles in Mathematics. Chicago: Lyons and carnhan, 1970.
Cita MLA (9a ed.)
Horne, Sylvia. Patterns and Puzzles in Mathematics. Lyons and carnhan, 1970.
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