Title: Challenging Logic Puzzles, Author: Barry R Clarke
Title: Brain-Stretching Logic Puzzles, Author: Barry R Clarke
Title: Mathematical Puzzles and Curiosities, Author: Barry R. Clarke
Title: Mathematical Conundrums, Author: Barry R. Clarke
Title: Supergenius Logic Puzzles, Author: Barry R Clarke
Title: Extreme Logic Puzzles, Author: Barry R Clarke
Title: Quantum Puzzle, The: Critique Of Quantum Theory And Electrodynamics, Author: Barry R Clarke
Title: Francis Bacon's Contribution to Shakespeare: A New Attribution Method / Edition 1, Author: Barry R. Clarke
Title: Vortex Atom, The: A New Paradigm, Author: Barry R Clarke
Title: Puzzles for Pleasure, Author: Barry R. Clarke
Title: Newton's Puzzles: Science and Logic Puzzles Inspired by the Brilliance of Sir Isaac Newton, Author: Barry R. Clarke