Gaya APA
Nault, William H. (1981).
The World Book Encyclopedia: Volume 17 S-Sn .
Belfast:
World Book-Childcraft International.
Gaya Chicago
Nault, William H.
The World Book Encyclopedia: Volume 17 S-Sn.
Belfast:
World Book-Childcraft International,
1981.
Reference.
Gaya MLA
Nault, William H.
The World Book Encyclopedia: Volume 17 S-Sn.
Belfast:
World Book-Childcraft International,
1981.
Reference.
Gaya Turabian
Nault, William H.
The World Book Encyclopedia: Volume 17 S-Sn.
Belfast:
World Book-Childcraft International,
1981.
Reference.