Gaya APA
Nault, Wiliam H. (1984).
The World Book Encyclopedia P Vol. 15 .
America:
World book.
Gaya Chicago
Nault, Wiliam H.
The World Book Encyclopedia P Vol. 15.
America:
World book,
1984.
Text.
Gaya MLA
Nault, Wiliam H.
The World Book Encyclopedia P Vol. 15.
America:
World book,
1984.
Text.
Gaya Turabian
Nault, Wiliam H.
The World Book Encyclopedia P Vol. 15.
America:
World book,
1984.
Print.