Gaya APA
Encyclopedia of Knowledge Volume 20 ( Wor-Zyg). ().
:
Grolier Incorporated.
Gaya Chicago
Encyclopedia of Knowledge Volume 20 ( Wor-Zyg).
20.
:
Grolier Incorporated,
.
Buku.
Gaya MLA
Encyclopedia of Knowledge Volume 20 ( Wor-Zyg).
20.
:
Grolier Incorporated,
.
Buku.
Gaya Turabian
Encyclopedia of Knowledge Volume 20 ( Wor-Zyg).
:
Grolier Incorporated,
.
Buku.