Gaya APA
The World Book Encyclopedia (H Volume 9). (1972).
USA:
Field Enterprises Educational Corporation.
Gaya Chicago
The World Book Encyclopedia (H Volume 9).
H Volume 9, 1972.
USA:
Field Enterprises Educational Corporation,
1972.
Text.
Gaya MLA
The World Book Encyclopedia (H Volume 9).
H Volume 9, 1972.
USA:
Field Enterprises Educational Corporation,
1972.
Text.
Gaya Turabian
The World Book Encyclopedia (H Volume 9).
USA:
Field Enterprises Educational Corporation,
1972.
Print.