TY  - BOOK
AU  - Cunningham,Ruth,1907-1956
TI  - Understanding group behavior of boys and girls
PY  - 1951///
CY  - New York
PB  - Bureau of publication
KW  - Social psychology
N1  - 'Prepared for the Horace Mann-Lincoln Institute of School Experimentation, Teachers College, Columbia University.'
ER  -