TY  - RPRT
TI  - TASK DIFFICULTY AND EFFECT OF VERBAL REINFORCEMENT COMBINATIONS ON A VERBAL-CODING TASK.
AU  - T SUGIMURA
AU  - T ISHIBASHI
PY  - 1965
DO  - 10.2466/pr0.1965.16.3.884
UR  - https://pubmed.ncbi.nlm.nih.gov/14303021/
ID  - 14303021
ER  -