J G Baker1, G Whitehead. Show Affiliations » 1. Mental Retardation Centre Toronto, Canada.
Abstract
Year: 1972 PMID: 16795339 PMCID: PMC1310750 DOI: 10.1901/jaba.1972.5-191
Source DB: PubMed Journal: J Appl Behav Anal ISSN: 0021-8855