TY  - RPRT
TI  - Reducing multiple problem behaviours in a profoundly retarded child.
AU  - P Wehman
AU  - J Marchant
PY  - 1978
DO  - 10.1111/j.2044-8260.1978.tb00257.x
UR  - https://pubmed.ncbi.nlm.nih.gov/647170/
ID  - 647170
ER  -