Gaya APA
Krauskopi, Konrad, Beiser, Arthur. (1967).
The Physical universe .
New York:
McGraw Hill.
Gaya Chicago
Krauskopi, Konrad, Beiser, Arthur.
The Physical universe.
New York:
McGraw Hill,
1967.
Text.
Gaya MLA
Krauskopi, Konrad, Beiser, Arthur.
The Physical universe.
New York:
McGraw Hill,
1967.
Text.
Gaya Turabian
Krauskopi, Konrad, Beiser, Arthur.
The Physical universe.
New York:
McGraw Hill,
1967.
Print.