Gaya APA
Encyclopedia Britannica, Inc. (1977).
The Young Childrens Encyclopedia : Volume 13 (Volume 13).
Amerika Serikat:
.
Gaya Chicago
Encyclopedia Britannica, Inc.
The Young Childrens Encyclopedia : Volume 13.
Volume 13
Amerika Serikat:
,
1977.
Text.
Gaya MLA
Encyclopedia Britannica, Inc.
The Young Childrens Encyclopedia : Volume 13.
Volume 13
Amerika Serikat:
,
1977.
Text.
Gaya Turabian
Encyclopedia Britannica, Inc.
The Young Childrens Encyclopedia : Volume 13.
Volume 13
Amerika Serikat:
,
1977.
Print.