Chaisson, E., & McMillan, S. 1. (1999). Astronomy today (3rd ed.). Upper Saddle River, N.J.: Prentice Hall.
Trích dẫn kiểu ChicagoChaisson, Eric., và S. 1955- McMillan. Astronomy Today. 3rd ed. Upper Saddle River, N.J.: Prentice Hall, 1999.
Deismireacht MLAChaisson, Eric., và S. 1955- McMillan. Astronomy Today. 3rd ed. Upper Saddle River, N.J.: Prentice Hall, 1999.
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