December 7, 2020November 12, 2020 Anthony Ditillo, ‘The Single and Double Progression Method’, The Development of Physical Strength (Wm F. Hinbern, 1982).
August 16, 2019July 27, 2019 Anthony Ditillo, ‘The Single and Double Progression Method’, The Development of Physical Strength (Wm F. Hinbern, 1982).