APA Style
Asimovs, Isaac. (1989).
Pluto : a Double Planet .
:
Gareth Stevens Publishing.
Chicago Style
Asimovs, Isaac.
Pluto : a Double Planet.
:
Gareth Stevens Publishing,
1989.
Text.
MLA Style
Asimovs, Isaac.
Pluto : a Double Planet.
:
Gareth Stevens Publishing,
1989.
Text.
Turabian Style
Asimovs, Isaac.
Pluto : a Double Planet.
:
Gareth Stevens Publishing,
1989.
Print.