- Foundations of number systems by Bruce Elwyn Meserve, 1973
- The Nashville number system: A guide to how it works by Arthur D Levine, 1981
- Algebra and Number Systems by John Hunter, etc., 1974-07-11
- Cambridge Mathematics Direct 3 Numbers and the Number System Solutions by Mark Adams, Lynn Huggins-Cooper, et all 2000-08-31
- The Number System Of Algebra: Treated Theoretically And Historical (1890) by Henry Burchard Fine, 2008-12-22
- Tableau Systems for First Order Number Theory and Certain Higher Order Theories (Lecture Notes in Mathematics) by S.A. Toledo, 1975-06-17
- Number systems and their uses by Frank L Wolf, 1971
- ORIGINAL PATENT APPLICATION NUMBER 888328 FOR IMPROVEMENTS IN FUEL SYSTEMS FOR AIRCRAFT GAS TURBINE ENGINES (GLOUCESTER). by Dowty Fuel Systems Ltd., 1962
- Number systems;: Structure and properties by Anthony J Pettofrezzo, 1969
- The structure of number systems by Very Clean, 1st., Parker; Almost like NEW, 1966-01-01
- The Decimal System of Numbers: Illustrated and Practically Applied, by a Series of Systematic and Progressive Exercises by Dana Pond Colburn, 2010-02-22
- A portrait of 2;: A brief survey of the elementary number systems by Lawrence A Ringenberg, 1967
- Cambridge Mathematics Direct 1 Numbers and the Number System Teacher's Book by Jeanette Mumford, 2002-03-28
- Cambridge Mathematics Direct 2 Numbers and the Number System Activity Sheets by Jeanette Mumford, Joanne Woodward, 2002-02-28
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