- The Nashville Number System (with cd/cd rom: String Of Pearls) by Chas Williams, 2005-07-15
- The Number Systems: Foundations of Algebra and Analysis by Solomon Feferman, 2005-01
- The Number System (Dover Books on Mathematics) by H. A. Thurston, 2007-04-19
- The Number Systems: Foundations of Algebra and Analysis (Addison-Wesley Series in Mathematics) by Solomon Feferman, 1964
- Numbers and the Number System: Year 5 (Developing Numeracy) by Steve Mills, Hilary Koll, 2000-02-29
- Can You Count in Greek?: Exploring Ancient Number Systems by Judy Leimbach, 2005-06-01
- The Universal History of Numbers: From Prehistory to the Invention of the Computer by Georges Ifrah, 2000-10-09
- Number Theory: Volume I: Tools and Diophantine Equations (Graduate Texts in Mathematics) by Henri Cohen, 2007-05-23
- Symbolic logic and the real number system: An introduction to the foundations of number systems by A. H Lighstone, 1965
- Math Made Nice & Easy #1 (REA): Number Systems, Sets, Integers, Fractions and Decimals (Math Made Nice & Easy) by The Staff of REA, 1999-07-15
- The Book of Numbers: The Secret of Numbers and How They Changed the World by Peter J. Bentley, 2008-02-15
- Realm of Numbers by Isaac Asimov, 1959-06
- Introduction to Mathematical Thinking: Algebra and Number Systems by Will J. Gilbert, Scott A. Vanstone, 2004-08-01
- Complex Numbers from A to ...Z by Titu Andreescu, Dorin Andrica, 2005-10-03
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