Note: You are purchasing a standalone product; MasteringAstronomy does not come packaged with this content. If you would like to purchase both the physical text and MasteringAstronomy search for 0321927842 / 9780321927842. That package includes ISBN-10: 0321928083 / 9780321928085 and ISBN-10: 0321928377 / 9780321928375.

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