Gaya APA
The World Book Encyclopedia (T Volume 19). (1972).
USA:
Field Enterprises Educational Corporation.
Gaya Chicago
The World Book Encyclopedia (T Volume 19).
T Volume 19, 1972.
USA:
Field Enterprises Educational Corporation,
1972.
Text.
Gaya MLA
The World Book Encyclopedia (T Volume 19).
T Volume 19, 1972.
USA:
Field Enterprises Educational Corporation,
1972.
Text.
Gaya Turabian
The World Book Encyclopedia (T Volume 19).
USA:
Field Enterprises Educational Corporation,
1972.
Print.