Kolb, E. W. (1990). The early universe. Reading, Mass: Addison-Wesley.
Trích dẫn kiểu ChicagoKolb, Edward W. The Early Universe. Reading, Mass: Addison-Wesley, 1990.
MLA citiranjeKolb, Edward W. The Early Universe. Reading, Mass: Addison-Wesley, 1990.
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