TY  - BOOK
AU  - Powell,Leonard Sutherland
TI  - Communication and learning
SN  - 0273406973
AV  - LB1051.P58 1969 .P58
U1  - 371.3 
PY  - 1969///
CY  - London
PB  - Pitman
KW  - Learning, Psychology of
KW  - Audio-visual education
KW  - Communication in education
N1  - Plans on lining papers; Includes bibliographies
ER  -