Authors: William Calvin Hoover Slagle

  • Descriptive Geometry, In Six Parts — William Calvin Hoover Slagle

    Descriptive Geometry, In Six Parts — William Calvin Hoover Slagle

  • Descriptive Geometry, In Six Parts … Perspective — William Calvin Hoover Slagle

    Descriptive Geometry, In Six Parts … Perspective — William Calvin Hoover Slagle