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B. Krauskopf, Konrad, Beiser, Arthur. (2000). The Physical Universe (Ed.9). United States: McGraw-Hill.

Gaya Chicago

B. Krauskopf, Konrad, Beiser, Arthur. The Physical Universe. Ed.9 United States: McGraw-Hill, 2000. Text.

Gaya MLA

B. Krauskopf, Konrad, Beiser, Arthur. The Physical Universe. Ed.9 United States: McGraw-Hill, 2000. Text.

Gaya Turabian

B. Krauskopf, Konrad, Beiser, Arthur. The Physical Universe. Ed.9 United States: McGraw-Hill, 2000. Print.