U.S. and U.S.S.R. Begin Exchange Visits of Nuclear Scientists: Polio Group Encounters Difficulties

See allHide authors and affiliations

Science  20 May 1960:
Vol. 131, Issue 3412, pp. 1509-1510
DOI: 10.1126/science.131.3412.1509

This is a PDF-only article. The first page of the PDF of this article appears below.

PDF extract preview