ISSN 0439-755X
CN 11-1911/B
AN INVESTIGATION IN THE DEVELOPMENT OF CONCEPTS IN CHILDREN OF 4—9 YEARS Ⅰ. EXPERIMENTAL STUDIES ON CLASSIFICATION AND GENERIC NAMING
LIU CHING-HO, WANG HSIEN-TIEN, FAN TSUN-JEN, CHANG MEI-LING
Acta Psychologica Sinica . 1963, (04): 39 -47 .