Invitation to Number Theory by Oystein Ore - The MAA New Mathematical Library

Introduction to Inequalities, Beckenbach & Bellman, MAA New Mathematical Library

Groups and Their Graphs by Grossman & Magnus - The MAA New Mathematical Library

First Concepts of Topology by Chinn & Steenrod, The MAA New Mathematical Library

Continued Fractions by Andrew M. Rockett, Peter Szüsz. Rockett HARDCOVER

Continued Fractions C.D. Olds First Print New Mathmatical Library Number 9 HC

Inequalities (Cambridge Mathematical Library)

continued fractions by wall