'This inventive president invented a "mouldboard of least resistance" for a plow'
Jefferson
U.S. PRESIDENTS: This inventive president invented a mouldboard of least resistance for a plow
This inventive president invented a "mouldboard of least resistance" for a plow
This inventive president invented a "mouldboard of least resistance" for a plow
U.S. PRESIDENTS
Jefferson
U.S. PRESIDENTS