TY  - BOOK
AU  - Smith,Peter K .
TI  - Children and play.: understanding children's world. 
SN  - 978-0-631-23522-4
U1  - 155.418 
PY  - 2010///
CY  - Singapore
PB  - Wiley Blackwell
KW  - Play behavior in animals
KW  - Play--Psychological aspects
KW  - Psychology, Comparative
N1  - Includes bibliographical references and index

ER  -