Gaya APA
KAY, John. (2010).
Obliquity .
USA:
Penguin Group.
Gaya Chicago
KAY, John.
Obliquity.
USA:
Penguin Group,
2010.
Text.
Gaya MLA
KAY, John.
Obliquity.
USA:
Penguin Group,
2010.
Text.
Gaya Turabian
KAY, John.
Obliquity.
USA:
Penguin Group,
2010.
Print.