Sion - A Fortiori Logic - New paperback or softback - X555z

Cahn - Fate Logic and Time - New paperback or softback - X555z

Bilaniuk - Problem Course in Mathematical Logic - paperback or softbac - X555z

Nidditch - Development of Mathematical Logic - paperback or softback - X555z

Goursat - A Course in Mathematical Analysis Volume 2 - New paperback - X555z

Ben-Ari - Mathematical Surprises - New paperback or softback - X555z

Hotchkiss - Manual of Elementary Logic - New paperback or softback - 2 - X555z

Goursat - A Course in Mathematical Analysis - New paperback or softbac - X555z