TY  - RPRT
TI  - Operant learning (R-S) principles applied to nail-biting.
AU  - T M McClanahan
PY  - 1995
DO  - 10.2466/pr0.1995.77.2.507
UR  - https://pubmed.ncbi.nlm.nih.gov/8559875/
ID  - 8559875
ER  -