ISSN 0439-755X
CN 11-1911/B
A CLINICAI STUDY OF MENTAL RETARDATION AND A SURVEY OF ITS INCIDENCE RATE
Mao Yu-yan,Gong Wei--yao,Fan Cun-ren,Fang Yi-ying,Zha Zi-xiu,Ji Chu-qing,Zhou Zhi-fang
Acta Psychologica Sinica . 1979, (01): 101 -110 .