TY  - BOOK
AU  - Trevaskis,G.A.
ED  - University of Papua and New Guinea.
TI  - Preparing descriptive profiles for educational materials: a manual for evaluators 
PY  - 1970///
CY  - [Port Moresby]
PB  - University of Papua and New Guinea, Educational Materials Centre
KW  - Teaching
KW  - Aids and devices
KW  - Evaluation
ER  -