TY  - BOOK
AU  - Rogoff,Rosalind Louise
TI  - The training wheel : : a simple model for instructional design / 
SN  - 047183467X
U1  - 658.312404 23
PY  - 1987///.
CY  - New York : 
PB  - Wiley, 
KW  - Employees - Training of.
KW  - Instructional systems - Design.
ER  -