CLAWSON, C. C. (2004). The mathematical traveler: Exploring the grand history of numbers. Viva Books Private Limited.
Chicago-čujuhus (17. p.)CLAWSON, Calvin C. The Mathematical Traveler: Exploring the Grand History of Numbers. New Delhi: Viva Books Private Limited, 2004.
MLA-čujuhus (9. p.)CLAWSON, Calvin C. The Mathematical Traveler: Exploring the Grand History of Numbers. Viva Books Private Limited, 2004.
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