Gaya APA
Abell, George. (1969).
Exploration Of The Universe (Ed. 1).
America:
Holt, Rinehart and Winston.
Gaya Chicago
Abell, George.
Exploration Of The Universe.
Ed. 1
America:
Holt, Rinehart and Winston,
1969.
Text.
Gaya MLA
Abell, George.
Exploration Of The Universe.
Ed. 1
America:
Holt, Rinehart and Winston,
1969.
Text.
Gaya Turabian
Abell, George.
Exploration Of The Universe.
Ed. 1
America:
Holt, Rinehart and Winston,
1969.
Print.