21 Apr
2017
21 Apr
'17
2:28 a.m.
Mariner Mission to Venus, by Jet Propulsion Laboratory 54585 [Link: http://www.gutenberg.org/5/4/5/8/54585 ] [Files: ; 54585-0.txt; 54585-h.htm] Thanks to Stephen Hutcheson and the Online Distributed Proofreading Team at http://www.pgdp.net Regards, Al
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Al Haines