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Extreme Explosions: Supernovae, Hypernovae, Magnetars, and Other Unusual Cosmic Blasts (Astronomers' Universe): Stevenson, David S.: 9781461481355: Amazon.com: Books
Sulla Determinazione Delle Coordinate Angolari Mediante Gli Strumenti Astronomici E In Particolare Sullo Strumento Dei Passaggi... (Italian Edition): Lorenzoni, Guiseppe: 9781276320856: Amazon.com: Books
Amazon.com : Explore Scientific 120° Ar High End Eyepiece 9 mm (2") Multi-Layer Coating and Argon Protection Gas Filling : Electronics