Gaya APA
Johnson, George B. (2003).
The Living World (3rd.Ed).
United State of America:
Mc Graw-Hill.
Gaya Chicago
Johnson, George B.
The Living World.
3rd.Ed
United State of America:
Mc Graw-Hill,
2003.
Text.
Gaya MLA
Johnson, George B.
The Living World.
3rd.Ed
United State of America:
Mc Graw-Hill,
2003.
Text.
Gaya Turabian
Johnson, George B.
The Living World.
3rd.Ed
United State of America:
Mc Graw-Hill,
2003.
Print.