Letters Behavior Reinforcement By William T. Powers See allHide authors and affiliations Science 29 Nov 1974:Vol. 186, Issue 4166, pp. 782DOI: 10.1126/science.186.4166.782 William T. Powers Find this author on Google Scholar Find this author on PubMed Search for this author on this site Article Info & Metrics eLetters PDF Article Information vol. 186 no. 4166 782 DOI: https://doi.org/10.1126/science.186.4166.782 PubMed: 17838584 Published By: American Association for the Advancement of Science Print ISSN: 0036-8075 Online ISSN: 1095-9203 Copyright & Usage: 1974 by the American Association for the Advancement of Science Author Information Altmetric Article usage Article lifetimeLast 6 monthsThis monthArticle usage: July 2007 to October 2020 AbstractFullPdf Jul 2007001 Aug 2007001 Oct 2007001 Nov 2007001 Mar 2009001 Jul 2009002 Feb 2010001 Dec 2010001 Mar 2011020 Apr 2011011 Jun 2011001 Jul 2011040 Aug 2011020 Nov 2011001 Dec 2011020 Jan 2012002 Feb 2012001 Aug 2012001 Oct 2012001 Dec 2012004 May 2014002 Jun 2014001 Aug 2014002 Dec 2014001 Jan 2015001 Feb 2015003 Mar 2015001 Apr 2015001 May 2015003 Jun 2015002 Jul 2015004 Aug 2015001 Sep 2015001 Oct 2015001 Dec 2015002 Mar 2016001 Apr 2016002 Jul 2016001 Nov 2016001 Jan 2017003 Jun 2018001 Aug 2018002 Mar 2019002 Mar 2020001 Aug 2020001 Oct 2020001 View PDF Extract
Science Vol 186, Issue 416629 November 1974 Table of Contents Print Table of Contents Back Matter (PDF) Ed Board (PDF) Front Matter (PDF)