TY  - BOOK
AU  - Miles, Matthew B
TI  - Learning to work in groups: a program guide for educational leaders 
AV  - LC 6519 M55
PY  - 1959///
CY  - New York
PB  - Bureau of Publications
KW  - Mesas redondas (Discusión y debate)
N1  - "A publication of the Horace Mann-Lincoln Institute of School Experimentation, Teachers College, Columbia University"
ER  -