Decennial reports on the trade, industries, etc., of the ports open to foreign commerce, and on the condition and development of the treaty port provinces, 1912-21. Vol. I, Northern and Yangtze ports, 1924
"China. The maritime customs. I.-Statistical series: No. 6."
"Fourth issue."
"Published by order of the Inspector General of Customs."
Electronic reproduction. Marlborough, Wiltshire : Adam Matthew Digital, 2018. Digitized from a copy held by Cambridge University Library and made available by Adam Matthew Digital.