Journal of the three voyages along the coast of China, in 1831, 1832, and 1833, with notices of Siam, Corea, and the Loo-choo islands / Carl Friedrich August Guetzlaff ; to which is prefixed an introductory essay on China, by W. Ellis. - Gutzlaff, Karl Friedrich August, 1803-1851 (British Library historical print collections. Geology, 2011)