TY  - RPRT
TI  - An inexpensive computer-assisted psychometric system: (the computer programs).
AU  - C J Birtles
PY  - 1972
DO  - 10.1016/0020-7101(72)90016-5
UR  - https://pubmed.ncbi.nlm.nih.gov/5043366/
ID  - 5043366
ER  -