TY  - BOOK
AU  - Osborne, C .W.
AU  - Trott, A. J.
TI  - International Yearbook of Educational and Instructional technology 1986 / 87
SN  - 0 89397 239 8
U1  - 371. 394 
PY  - 1986///
CY  - London
PB  - Kogan Page Limited
ER  -