TY  - BOOK
AU  - Gropper,George Leonard
TI  - Diagnosis and revision in the development of instructional materials
SN  - 0877780838
AV  - LB1043 G7.3
PY  - 1975///
CY  - Englewood Cliffs, EUA
PB  - Educational Technology
KW  - ENSEÑANZA -
KW  - MATERIALES AUXILIARES
KW  - Enseñanza programada
ER  -