Johannes von Gumpach: The Tonnage-Dues Fund. The harbour of Shang-hai and the Wu-sung bar (Reprinted from the „Shanghai Evening Courier“) (Shanghai: „Ching-Foong“ Printing Office, 1872)
- Digitized: SBB-PK (shelfmark: Un 7166/30)
- No copy listed in Wiener China-Bibliographie