"Dear Dr. Wang: Our Government desires to request the League of Nations to appoint and despatch an adequate number of conservancy experts to China to undertake the work of relief and conservancy in the flooded areas of the Yellow River now under Japanese military occupation......", 7月23日. 特藏中心.

"Dear Dr. Wang: Our Government desires to request the League of Nations to appoint and despatch an adequate number of conservancy experts to China to undertake the work of relief and conservancy in the flooded areas of the Yellow River now under Japanese military occupation......", 7月23日. 特藏中心. http://10.55.102.87:8081/repositories/2/archival_objects/47074 Accessed July 27, 2025.

(顾维钧, 1888－1985)

(顾维钧, 1888－1985, n.d.)

(顾维钧, 1888－1985, n.d.)

顾维钧, 1888－1985, “‘Dear Dr. Wang: Our Government Desires to Request the League of Nations to Appoint and Despatch an Adequate Number of Conservancy Experts to China to Undertake the Work of Relief and Conservancy in the Flooded Areas of the Yellow River Now under Japanese Military Occupation......", 7月23日,” ., accessed July 27, 2025, http://10.55.102.87:8081/repositories/2/archival_objects/47074.

顾维钧, 1888－1985. "Dear Dr. Wang: Our Government Desires to Request the League of Nations to Appoint and Despatch an Adequate Number of Conservancy Experts to China to Undertake the Work of Relief and Conservancy in the Flooded Areas of the Yellow River Now under Japanese Military Occupation......", 7月23日[Z/OL]([no date])[2025–07–27]. http://10.55.102.87:8081/repositories/2/archival_objects/47074.