Studies in Logic and the Foundations of Mathematics
A Heyting & A. Mostowski & A. Robinson & P. Suppes
Personalmanagement
Dirk Holtbrügge
Missionary Linguistics III
Otto Zwartjes & Gregory James & Emilio Ridruejo & Emilio Ridruejo Alonso
Essentials of Mathematics: Introduction to Theory, Proof, and ...
Margie Hale
Riddles of the Sphinx: And Other Mathematical Puzzle Tales
Martin Gardner
A Functional Linguistic Perspective on Developing Language
Anne McCabe