@misc{indiciaeeabb45fbb256, title = {Operant conditioning in evaluating children with learning problems.}, author = {J Francis-Williams}, year = {1967}, doi = {10.1111/j.1469-8749.1967.tb02282.x}, url = {https://pubmed.ncbi.nlm.nih.gov/6035583/}, note = {Source identifier: 6035583} }