Gaya APA
The World Book Encyclopedia (E Volume 6). (1972).
USA:
Field Enterprises Educational Corporation.
Gaya Chicago
The World Book Encyclopedia (E Volume 6).
E Volume 6, 1972.
USA:
Field Enterprises Educational Corporation,
1972.
Text.
Gaya MLA
The World Book Encyclopedia (E Volume 6).
E Volume 6, 1972.
USA:
Field Enterprises Educational Corporation,
1972.
Text.
Gaya Turabian
The World Book Encyclopedia (E Volume 6).
USA:
Field Enterprises Educational Corporation,
1972.
Print.