Gaya APA
Flynn, Mike. (2006).
Astronomy essential facts about the universe .
New York:
Barrons.
Gaya Chicago
Flynn, Mike.
Astronomy essential facts about the universe.
New York:
Barrons,
2006.
Text.
Gaya MLA
Flynn, Mike.
Astronomy essential facts about the universe.
New York:
Barrons,
2006.
Text.
Gaya Turabian
Flynn, Mike.
Astronomy essential facts about the universe.
New York:
Barrons,
2006.
Print.