APA Style
Asimovs, Isaac. (1989).
Colonizing the Planets and Star .
:
Gareth Stevens Publishing.
Chicago Style
Asimovs, Isaac.
Colonizing the Planets and Star.
:
Gareth Stevens Publishing,
1989.
.
MLA Style
Asimovs, Isaac.
Colonizing the Planets and Star.
:
Gareth Stevens Publishing,
1989.
.
Turabian Style
Asimovs, Isaac.
Colonizing the Planets and Star.
:
Gareth Stevens Publishing,
1989.
.