Sell, buy or rent Sandor Lehoczky textbooks

The Art of Problem Solving, Vol. 2: And Beyond

by Richard Rusczyk, Sandor Lehoczky
ISBN-13: 9780977304585
ISBN-10: 0977304582
Edition: 7th
Publication date: 2006
Publisher: AoPS Incorporated
Format: Paperback 320 pages

The Art of Problem Solving, Vol. 1: The Basics

by Sandor Lehoczky, Richard Rusczyk
ISBN-13: 9780977304561
ISBN-10: 0977304566
Edition: 7th
Publication date: 2006
Publisher: AoPS Incorporated
Format: Paperback 288 pages