APA-ийн эшлэл(7 дахь хэвлэлт)
National Research Council (U.S.). Committee on NASA Astronomy Science Centers, National Research Council (U.S.). Space Studies Board, National Research Council (U.S.). Division on Engineering and Physical Sciences, & ebrary, Inc. (2007). Portals to the universe: The NASA astronomy science centers. The National Academies Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
National Research Council (U.S.). Committee on NASA Astronomy Science Centers, National Research Council (U.S.). Space Studies Board, National Research Council (U.S.). Division on Engineering and Physical Sciences, ба Inc ebrary. Portals to the Universe: The NASA Astronomy Science Centers. Washington, D.C.: The National Academies Press, 2007.
MLA -ийн эшлэл (9 дэх хэвлэлт)
National Research Council (U.S.). Committee on NASA Astronomy Science Centers, et al. Portals to the Universe: The NASA Astronomy Science Centers. The National Academies Press, 2007.
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