Gaya APA
GWINN, Robert P.. (1991).
THE NEW ENCYCLOPEDIA BRITANNICA VOLUME 21 .
:
.
Gaya Chicago
GWINN, Robert P..
THE NEW ENCYCLOPEDIA BRITANNICA VOLUME 21.
:
,
1991.
Encyclopedia.
Gaya MLA
GWINN, Robert P..
THE NEW ENCYCLOPEDIA BRITANNICA VOLUME 21.
:
,
1991.
Encyclopedia.
Gaya Turabian
GWINN, Robert P..
THE NEW ENCYCLOPEDIA BRITANNICA VOLUME 21.
:
,
1991.
Encyclopedia.