Gaya APA
Fridell, Ron. (2002).
Global Warming : Ron Fridell .
New York:
Franklin Watts.
Gaya Chicago
Fridell, Ron.
Global Warming : Ron Fridell.
New York:
Franklin Watts,
2002.
English Corner.
Gaya MLA
Fridell, Ron.
Global Warming : Ron Fridell.
New York:
Franklin Watts,
2002.
English Corner.
Gaya Turabian
Fridell, Ron.
Global Warming : Ron Fridell.
New York:
Franklin Watts,
2002.
English Corner.