Gaya APA
Johnson, George B.. (2008).
The Living World (Sixth Edition).
New York:
McGrawHill.
Gaya Chicago
Johnson, George B..
The Living World.
Sixth Edition
New York:
McGrawHill,
2008.
Text.
Gaya MLA
Johnson, George B..
The Living World.
Sixth Edition
New York:
McGrawHill,
2008.
Text.
Gaya Turabian
Johnson, George B..
The Living World.
Sixth Edition
New York:
McGrawHill,
2008.
Print.