Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Sagan, C. (Cornell University Ithaca, N.Y., United States) Young, A. T. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States) Date Acquired
August 7, 2013
Publication Date
June 22, 1973
Publication Information
Publication: Nature
Volume: 244
Accession Number
73A34434
Distribution Limits
Public