Hal Koerner

Forfatter • 2 bøker

4.4

Hal Koerner's Field Guide to Ultrarunning : Training for an Ultramarathon, from 50K to 100 Miles and Beyond

Hal Koerner

4.5

Hal Koerner's Field Guide to Ultrarunning : Training for an Ultramarathon, from 50K to 100 Miles and Beyond

Hal Koerner, Adam Chase, Scott Jurek

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