Crilly,Tony. (2009). Fifty mathematical ideas: You really need to know. Quercus.
Παραπομπή Chicago StyleCrilly,Tony. Fifty Mathematical Ideas: You Really Need to Know. Great Britan: Quercus, 2009.
Παραπομπή MLACrilly,Tony. Fifty Mathematical Ideas: You Really Need to Know. Quercus, 2009.
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