Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Schopf, J. W. (California, University Los Angeles, Calif., United States) Date Acquired
August 6, 2013
Publication Date
December 17, 1971
Publication Information
Publication: Science
Volume: 174
Accession Number
72A14415
Funding Number(s)
CONTRACT_GRANT: NGR-05-007-292
CONTRACT_GRANT: NSF GA-1152
CONTRACT_GRANT: NSF GA-23741
CONTRACT_GRANT: NSF GA-1503
Distribution Limits
Public