Gaya APA
Ball, Sir Robert. (2014).
A primer of astronomy / Sir Robert Ball .
:
Cambridge: Cambridge University Press.
Gaya Chicago
Ball, Sir Robert.
A primer of astronomy / Sir Robert Ball.
:
Cambridge: Cambridge University Press,
2014.
Buku.
Gaya MLA
Ball, Sir Robert.
A primer of astronomy / Sir Robert Ball.
:
Cambridge: Cambridge University Press,
2014.
Buku.
Gaya Turabian
Ball, Sir Robert.
A primer of astronomy / Sir Robert Ball.
:
Cambridge: Cambridge University Press,
2014.
Buku.