@misc{indiciae11b55eb77da2, title = {Tangible reinforcers: bonuses or bribes?}, author = {K D O'Leary and R W Poulos and V T Devine}, year = {1972}, doi = {10.1037/h0032412}, url = {https://pubmed.ncbi.nlm.nih.gov/5010660/}, note = {Source identifier: 5010660} }