[Dr. Yen 和比利时外和委员会主席] Between Dr. Koo, Dr. Yen and Mr. Hymans, Belgian Delegate and President of the Conference, January 15, 1933, Digital File: Koo_Box_0044, Folder: 2. 特藏中心.

[Dr. Yen 和比利时外和委员会主席] Between Dr. Koo, Dr. Yen and Mr. Hymans, Belgian Delegate and President of the Conference, January 15, 1933, Digital File: Koo_Box_0044, Folder: 2. 特藏中心. http://10.55.102.87:8081/repositories/2/archival_objects/8118 Accessed June 28, 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, “[Dr. Yen 和比利时外和委员会主席] Between Dr. Koo, Dr. Yen and Mr. Hymans, Belgian Delegate and President of the Conference, January 15, 1933,” , Digital File: Koo_Box_0044, Folder: 2., accessed June 28, 2025, http://10.55.102.87:8081/repositories/2/archival_objects/8118.

顾维钧, 1888－1985. [Dr. Yen 和比利时外和委员会主席] Between Dr. Koo, Dr. Yen and Mr. Hymans, Belgian Delegate and President of the Conference, January 15, 1933[Z/OL]([no date])[2025–06–28]. http://10.55.102.87:8081/repositories/2/archival_objects/8118.