Gaya APA
World Book- Childcraft International, Inc. (1980).
The World Book Encyclopedia (1980).
:
World Book Childcraft.
Gaya Chicago
World Book- Childcraft International, Inc.
The World Book Encyclopedia.
1980
:
World Book Childcraft,
1980.
Text.
Gaya MLA
World Book- Childcraft International, Inc.
The World Book Encyclopedia.
1980
:
World Book Childcraft,
1980.
Text.
Gaya Turabian
World Book- Childcraft International, Inc.
The World Book Encyclopedia.
1980
:
World Book Childcraft,
1980.
Print.