Author: Karnazes, Dean & Fitzgerald, Matt
Title: 50/50 - Secrets I Learned Running 50 Marathons In 50 Days : And How You Too Can Achieve Super Endurance!
Description: Grand Central Life & Style, New York, 2009, 4th impression. Paperback, VG. xiv+286pp, 16pp colour plates, single spine crease, otherwise a fine copy. Paperback , no dustjacket. ISBN: 9780446581844 ¶ An account of how runner Dean Karnazes managed to run 50 marathons, in 50 States, over 50 consecutive days.

Keywords: ISBN 9780446581844, sport, athletics 9780446581844