TY  - RPRT
TI  - A cooperative multiple-choice apparatus.
AU  - H N PETERS
AU  - O D MURPHREE
PY  - 1954
DO  - 10.1126/science.119.3084.189-a
UR  - https://pubmed.ncbi.nlm.nih.gov/13122058/
ID  - 13122058
ER  -