1.
The Lazy Man's Guide to [ultra]Marathon Running: a Mad Mathematician's Research-based "Easy ...
by Prof Sky Pelletier Waterpeace
ISBN: 9781655360404
List Price: $26.20
2.
The Lazy Man's Guide to [ultra]Marathoning: a Mad Mathematician's Research-based "Easy Does ...
by Prof Sky Pelletier Waterpeace
ISBN: 9781082352706
List Price: $26.20