Art of Problem Solving Series, the Art of Problem Solving, Volume 1Sandor Lehoczky and Richard Rusczyk · First published 2006Open the Tome
Art of Problem Solving Series, the Art of Problem Solving, Volume 2Richard Rusczyk and Sandor Lehoczky · First published 2006Open the Tome
The Art of Problem SolvingRichard Rusczyk, Sandor Lehoczky · First published 2003 · Latest edition 2006Open the Tome
The art of problem solvingSandor Lehoczky, Richard Rusczyk · First published 1993 · Latest edition 1994Open the Tome
