TY  - RPRT
TI  - Is adjunctive behavior a third class of behavior?
AU  - C L Wetherington
PY  - 1982
DO  - 10.1016/0149-7634(82)90045-8
UR  - https://pubmed.ncbi.nlm.nih.gov/6757807/
ID  - 6757807
ER  -