Riddles of the Sphinx: And Other Mathematical Puzzle Tales
Martin Gardner
Language Acquisition: Knowledge Representation and Processing
Antonella Sorace & Caroline B. Heycock & Richard Shillcock
Research Methods in Second Language Acquisition: A Practical ...
Susan M. Gass & Alison Mackey
Point of Origin
Laird Scranton
Prime Obsession: Berhhard Riemann and the Greatest Unsolved ...
John Derbyshire
Adventures of a Computational Explorer
Stephen Wolfram