The Foundations of Geometry

by (author) Gilbert de Beauregard Robinson

Differential Geometry

by (author) Erwin Kreyszig

Partial Differential Equations

by (author) G.F.D. Duff

Non-Euclidean Geometry

Fifth Edition

by (author) H.S.M. Coxeter

King of Infinite Space

Donald Coxeter, the Man Who Saved Geometry

by (author) Siobhan Roberts

Foundations of Geometry

Selected proceedings of a conference

edited by P. Scherk

n-gons

by (author) Friedrich Bachmann & Eckart Schmidt
translated by Cyril Garner

Mathematical Recreations & Essays

Twelfth Edition

by (author) W.W. Rouse Ball & H.S.M. Coxeter