Extreme Logic Puzzles by Clarke, Barry R.

Extreme Logic Puzzles - Paperback, by Clarke Barry R - Very Good

IQ Workout Logic Puzzles - Paperback - VERY GOOD

Extreme Logic Puzzles - paperback Clarke, Barry R

Fantastic Book of Logic Puzzles - Paperback By Mandell, Muriel - VERY GOOD

Extreme Logic Puzzles by Clarke, Barry R.

Extreme Logic Puzzles Paperback Barry R. Clarke

Perfectly Logical!: Challenging Fun Brain Teasers and Logic Puzzles - VERY GOOD