Gaya APA
Couper,Heather, Henbest, Nigel. (1986).
Astronomi .
Jakarta:
Tira Pustaka.
Gaya Chicago
Couper,Heather, Henbest, Nigel.
Astronomi.
Jakarta:
Tira Pustaka,
1986.
Text.
Gaya MLA
Couper,Heather, Henbest, Nigel.
Astronomi.
Jakarta:
Tira Pustaka,
1986.
Text.
Gaya Turabian
Couper,Heather, Henbest, Nigel.
Astronomi.
Jakarta:
Tira Pustaka,
1986.
Print.