TY  - RPRT
TI  - Dispensing liquid reinforcers.
AU  - C Surber
AU  - P L Martin
PY  - 1972
DO  - 10.1901/jaba.1972.5-138
UR  - https://pubmed.ncbi.nlm.nih.gov/16795332/
ID  - 16795332
ER  -