Numbers: Rational and Irrational, Ivan Niven, Good Book

Numbers: Rational and Irrational

Numbers: Rational and Irrational - Ivan Niven - New Mathematical Library - 1

Numbers: Rational and Irrational - Ivan Niven - The MAA New Mathematical Library

Numbers: Rational and Irrational

Maxima and Minima Without Calculus by Ivan Niven

Mathematics of Choice: How to Count Without Counting by Ivan Niven - MAA

An Introduction to the Theory of Numbers by Ivan Niven