TY  - BOOK
ED  - Zhongshan da xue (Guangzhou, China).
TI  - The Institute of educational research, Sun Yatsen university, Canton, China
AV  - LG51.C4 A53
PY  - 1930///]
CY  - [Canton? China
KW  - Education
KW  - Research
KW  - China
N1  - Cover title
ER  -