Todhunter - Algebra for Beginners With Numerous Examples - New paper - X555z

Marshall - Companion to Algebra With Numerous Examples - New paperback - X555z

Russell - Introduction to Mathematical Philosophy - New paperback or s - X555z

Introduction to Quaternions: With Numerous Examples (Classic Reprint)

A Primer of Quaternions (Classic Reprint)

Stamatellos - Introduction to Presocratics - New paperback or softback - X555z

Introduction to Quaternions (Classic Reprint)