00307nam a2200097Ia 4500008004100000245006200041245003500103260000900138650001400147856004800161171211s9999    xx            000 0 und d  aTotality ― The Great American Eclipses of 2017 and 2024  cFred Espenak and Mark Littmann  c1987  xASTRONOMY  uhttp://down.ebook777.com/064/0198795696.pdf