TY  - GEN
AU  - GREEN,E J
TI  - Concept formation: a problem in human operant conditioning
SN  - 0022-1015
PY  - 2003///0501
KW  - Concept Formation
KW  - Conditioning, Operant
KW  - Humans
KW  - Learning
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1037/h0048778
ER  -