This primary source comes from the Records of the Immigration and Naturalization Service.
Full Citation: Arrival of Chinese and Japanese at Port of Ensenada, Lower California, Mexico, During Fiscal Year Ended June 30, 1908; 7/1/1908; 6727; Chinese General Correspondence, 1898 - ca. 1911; Records of the Immigration and Naturalization Service, Record Group 85; National Archives at Washington, D.C.. [Online Version, https://www.docsteach.org/documents/document/arrival-chinese-japanese-port-ensenada, September 9, 2024]