Map of the Province of Canton according to the map of the Kwong-Tung tʻu shot: with coast-line taken from Navy charts and details supplied by several Protestant Missionaries. By Rev. J. G. Loercher. Sold at the Basle Mission, Westpoint, Hongkong, and at the Mission house, Basle, Switzerland, 1879. Engraved, Printed and Coloured by Wurster Randegger & Co. Winterthur
- Bibliographic reference: BS col. 301
- Digitized: Library of Congress
- No copy listed in Wiener China-Bibliographie