During three periods of ethnic identification work after 1949 , professor Fei Xiaotong , Huang Xianfan , Xia Kangnong and a lot of academic masters and scholars from anthropology and ethnic study circles had made their great contributions .
During three periods of ethnic identification work after 1949 , professors Fei Xiaotong , Huang Xianfan , Xia Kangnong and a lot of academic masters and scholars from anthropology and ethnic study circles made their great contributions .