TY  - BOOK
AU  - Walton,Jack
AU  - Ruck,John
ED  - Ward Lock Educational
TI  - Resources and resources centres ; editors J. Walton and J. Ruck
SN  - 0706234022
U1  - 371.33 23
PY  - 1975///.
CY  - London: 
PB  - Ward Lock, 
KW  - Instructional materials centers
N1  - Includes bibliography: p. 167-168 and index
ER  -