TY  - BOOK
AU  - Johnson,David W.
AU  - Johnson,Roger T.
AU  - Holubec,Edythe Johnson
TI  - Circles of learning: cooperation in the classroom 
SN  - 0939603128
AV  - LB 1032 .C537 1993
PY  - 1993///
CY  - Edina, Minn.
PB  - Interaction Book Co.
KW  - Group work in education
KW  - Cooperativeness
N1  - Includes bibliographical references
ER  -