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Bender the Bot (talk | contribs)
m Sun and planet gear: http→https for Google Books and Google News using AWB
Line 49:
|publisher=Read Books
|year=2007
|url=httphttps://books.google.com/books?id=95MUkfFgBFwC&pg=PA35
|isbn=978-1-4067-8053-6
|page=35