APA Style
Scientist, Young. (1991).
The Living World (1991).
USA:
World Book.
Chicago Style
Scientist, Young.
The Living World.
1991
USA:
World Book,
1991.
Text.
MLA Style
Scientist, Young.
The Living World.
1991
USA:
World Book,
1991.
Text.
Turabian Style
Scientist, Young.
The Living World.
1991
USA:
World Book,
1991.
Print.