APA Style
Lucy, Hawking, Hawking, Stephen. (2007).
George's Secret Key to the Universe .
New York:
Simon & Schuster Book.
Chicago Style
Lucy, Hawking, Hawking, Stephen.
George's Secret Key to the Universe.
New York:
Simon & Schuster Book,
2007.
Text.
MLA Style
Lucy, Hawking, Hawking, Stephen.
George's Secret Key to the Universe.
New York:
Simon & Schuster Book,
2007.
Text.
Turabian Style
Lucy, Hawking, Hawking, Stephen.
George's Secret Key to the Universe.
New York:
Simon & Schuster Book,
2007.
Print.