Gaya APA
Krauskopf, Konrad, Beiser, Athur. (2000).
The Physical universe .
New York:
McGraw Hill.
Gaya Chicago
Krauskopf, Konrad, Beiser, Athur.
The Physical universe.
New York:
McGraw Hill,
2000.
Text.
Gaya MLA
Krauskopf, Konrad, Beiser, Athur.
The Physical universe.
New York:
McGraw Hill,
2000.
Text.
Gaya Turabian
Krauskopf, Konrad, Beiser, Athur.
The Physical universe.
New York:
McGraw Hill,
2000.
Print.