TY  - RPRT
TI  - Note concerning individual differences and behavior on programmed materials.
AU  - G E Snelbecker
AU  - R C Downes
PY  - 1967
DO  - 10.2466/pr0.1967.21.1.333
UR  - https://pubmed.ncbi.nlm.nih.gov/6078385/
ID  - 6078385
ER  -