Wust, K. (1976). Span 200: A companion piece to the Span 200 exhibit, the story of German-American involvement in the founding and development of America ... [Philadelphia]: Published in behalf of Institut für Auslandsbeziehungen, Stuttgart [by National Carl Schurz Association].

Wust, Klaus. Span 200: A Companion Piece to the Span 200 Exhibit, the Story of German-American Involvement in the Founding and Development of America ... [Philadelphia]: Published in behalf of Institut für Auslandsbeziehungen, Stuttgart [by National Carl Schurz Association], 1976.

Wust, Klaus. Span 200: A Companion Piece to the Span 200 Exhibit, the Story of German-American Involvement in the Founding and Development of America ... [Philadelphia]: Published in behalf of Institut für Auslandsbeziehungen, Stuttgart [by National Carl Schurz Association], 1976.