TY  - BOOK
AU  - Mitchell,Elmer Dayton
AU  - Mason,Bernard Sterling
TI  - The theory of play
AV  - LB1137 .B632 1948
U1  - 790 
PY  - 1948///
CY  - New York
PB  - A.S. Barnes
KW  - Play
KW  - Local
KW  - Physical education and training
N1  - Includes bibliographies and index
ER  -