The William Lowell Putnam Mathematical Competition 2001-2016: problems, solutions, and commentary by Kedlaya, Kiran Sridhara, Kane, Daniel M., Kane, Jonathan Michael, O'Dorney, Evan M. fromAMS/MAA Problem Books 0 Type: Book
Bicycle or unicycle?: A collection of intriguing mathematical puzzles by Velleman, Daniel J. fromAMS/MAA Problem Books 0 Type: Book
Bicycle or unicycle?: a collection of intriguing mathematical puzzles by Velleman, Daniel J., Wagon, Stan fromAMS/MAA Problem Books 0 Type: Book
