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eBook
Resource Type: eBook.
Subjects: Red shift--Observations--Congresses, Astronomy, Astrophysics, Galaxies--Evolution--Congresses, Active galaxies--Congresses, Stars--Evolution--Congresses
Resource Type: eBook.
Subjects: Red shift--Observations--Congresses, Astronomy, Astrophysics, Galaxies--Evolution--Congresses, Active galaxies--Congresses, Stars--Evolution--Congresses