@misc{indiciaed1753d70e9eb, title = {Differences in psychological need hierarchy between program completers and dropouts from a drug abuse treatment program.}, author = {R J Craig and R E Olson}, year = {1988}, doi = {10.3109/00952998809001537}, url = {https://pubmed.ncbi.nlm.nih.gov/3213835/}, note = {Source identifier: 3213835} }