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Titles by Coach David Ertl, Ph.D.

Off-Season Conditioning: Cross-Training to Complement and Enhance Your Cycling

By Coach David Ertl, Ph.D.

$4.99
Low-Tech Training for Cyclists

By Coach David Ertl, Ph.D.

$4.99

By Coach David Ertl, Ph.D.

$4.99

By Coach David Ertl, Ph.D.

$14.95

By Coach David Ertl, Ph.D.

$14.95

By Coach David Ertl, Ph.D.

$17.95
Losing Those Last 10 Pounds: 12 Strategies for Getting Rid of Excess Body Fat

By Coach David Ertl, Ph.D.

$4.99