TY  - BOOK
AU  - Ellis,Susan S.
AU  - Whalen,Susan F.
TI  - Cooperative learning: getting started 
SN  - 0590490923
AV  - LB1032 .E45 1990 
PY  - 1990///
CY  - New York
PB  - Scholastic
KW  - Group work in education
N1  - Includes bibliographical references (p. 71)
ER  -