TY  - BOOK
AU  - Bertcher,Harvey J.
AU  - Maple,Frank F.
AU  - Wallace,Henry
TI  - Group composition, an instructional program
U1  - 302.3 
PY  - 1974///, c1972
CY  - Ann Arbor, Mich.
PB  - Campus Publishers
KW  - Small groups
N1  - Includes bibliographical references
ER  -