00845nam a2200253I 4500009365264MiAaHDL20110112000000.0m d cr bn ---auaua890128s1965 caua b 00010 eng dsdr-ucsd.b21357791CUSCUSCUSSQB721.R662(OCoLC)19079061Robey, Donald HA new theory on the nature and origin of comets[by] Donald H. Robey[San Diego, Calif.]General Dynamics/Convair,19651 v. (various pagings)illus.28 cmStudies of interplanetary dust and gasMode of access: Internet.Comets00936526420110112000000.020120815102429.02025-03-13T17:49:48ZSDR-UCSDIII - MILLENIUMloader.pl-001-001BKsdr-ucsd.b21357791uc1SDRUCSDuc1.31822008347296UC.b21357791UCUCSD20250313googleuc1.318220083472961965icbibUS bib date1 >= 1931