TY  - RPRT
TI  - Evaluation of videodisc modules: a mixed method approach.
AU  - P E Parkhurst
AU  - K L Lovell
AU  - S A Sprafka
AU  - M Hodgins
PY  - 1991
UR  - https://pubmed.ncbi.nlm.nih.gov/1807704/
ID  - 1807704
ER  -