TY  - BOOK
AU  - Ellis,Michael J.,1936-
TI  - Why people play
SN  - 0139589910
PY  - 1973///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Play
KW  - Psychological aspects
KW  - Leisure
KW  - Child psychology
N1  - Bibliography: p. 149-160
ER  -