TY - RPRT TI - Behaviour modification techniques applied to a family unit--a case study. AU - R Engeln AU - J Knutson AU - L Laughy AU - W Garlington PY - 1968 DO - 10.1111/j.1469-7610.1968.tb02226.x UR - https://pubmed.ncbi.nlm.nih.gov/5730951/ ID - 5730951 ER -