Gaya APA
THE WORLD Book Encyclopedi .--t.vol.19. (2006).
Chicago:
World Book.
Gaya Chicago
THE WORLD Book Encyclopedi .--t.vol.19.
.
Chicago:
World Book,
2006.
Reference.
Gaya MLA
THE WORLD Book Encyclopedi .--t.vol.19.
.
Chicago:
World Book,
2006.
Reference.
Gaya Turabian
THE WORLD Book Encyclopedi .--t.vol.19.
Chicago:
World Book,
2006.
Reference.