Theriault, F. (2000). Hertwig & Co: Archives ; 1890-1937. Gold Horse Publishing.
Chicago-Zitierstil (17. Ausg.)Theriault, Florence. Hertwig & Co: Archives ; 1890-1937. Annapolis, Maryland: Gold Horse Publishing, 2000.
MLA-Zitierstil (8. Ausg.)Theriault, Florence. Hertwig & Co: Archives ; 1890-1937. Gold Horse Publishing, 2000.
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