Title: Guo jia, du sheng zi nü, er tong guan
Description: Ben shu gen ju zai bei jing shi jin xing de jiao da gui mo de chou yang wen juan diao cha he po wei shen ru de she hui xue guan cha yu ren lei xue fang tan, zai xiang shi de zi liao he tong ji shu ju de ji chu shang zhan kai le guan yu cheng shi du sheng zi nü de jiao yang huan jing he dang dai zhong guo she hui zhuan xing guo cheng zhong " er tong guan " de bian qian deng lun shu.
Subjects: Only child, Child rearing, Statistics, Er tong, Sheng huo zhuang kuang, Diao cha yan jiu
Places: China, Beijing, Bei jing shi