TY  - RPRT
TI  - Developing communication in adults with profound and multiple learning difficulties using objects of reference.
AU  - Frances Jones
AU  - Tim Pring
AU  - Nicola Grove
DO  - 10.1080/13682820110116875
UR  - https://pubmed.ncbi.nlm.nih.gov/12012614/
ID  - 12012614
ER  -