(1976). Symbols of peace: William Penn's treaty with the Indians : an exhibition sponsored by the Pennsylvania Academy of the Fine Arts and Dickinson College : the Pennsylvania Academy of the Fine Arts, Philadelphia, Pennsylvania, May 12-September 26. Philadelphia: The Academy.

Symbols of Peace: William Penn's Treaty With the Indians : An Exhibition Sponsored By the Pennsylvania Academy of the Fine Arts and Dickinson College : The Pennsylvania Academy of the Fine Arts, Philadelphia, Pennsylvania, May 12-September 26. Philadelphia: The Academy, 1976.

Symbols of Peace: William Penn's Treaty With the Indians : An Exhibition Sponsored By the Pennsylvania Academy of the Fine Arts and Dickinson College : The Pennsylvania Academy of the Fine Arts, Philadelphia, Pennsylvania, May 12-September 26. Philadelphia: The Academy, 1976.