Association AffairsAAAS News Association Records Studied Science 06 Nov 1981:Vol. 214, Issue 4521, pp. 650DOI: 10.1126/science.214.4521.650 Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears above.
Science Vol 214, Issue 452106 November 1981 Table of Contents Print Table of Contents Ed Board (PDF) Front Matter (PDF)