1973 年4 月，中日友协代表团团员数学家华罗庚与京都大学朋友座谈。
Hua Luogeng, famous mathematician and member of the China-Japan Friendship Association delegation, talks with friends from Kyoto University of Japan in April 1973.

Chinese People's Association for Friendship with Foreign Countries, the P.R.C.   版权所有