Ethan Boldt (Boldt, Ethan)

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  via
  5-factor Fitness: The Diet And Fitness Secret of Hollywood's A-list
  by Theresa Foy Digeronimo, Ethan Boldt
  Softcover, Perigee, ISBN 0399532099 (0-399-53209-9)
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  Five Factor Fitness: The Diet and Fitness Secret of Hollywood's A-List
  by Harley Pasternak, Ethan Boldt
  Hardcover, Penguin Group (USA) Incorporated, ISBN 0399152296 (0-399-15229-6)