B F Skinner1. Show Affiliations » 1. Biological Laboratories, Harvard University.
Abstract
Year: 1934 PMID: 16577633 PMCID: PMC1076473 DOI: 10.1073/pnas.20.9.532
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205