Gaya APA
Encyclopedia Americana : Volume 23 ( Pumps to Russellville ). (1980).
Amerika:
Grolier International.
Gaya Chicago
Encyclopedia Americana : Volume 23 ( Pumps to Russellville ).
Volume 23.
Amerika:
Grolier International,
1980.
Buku.
Gaya MLA
Encyclopedia Americana : Volume 23 ( Pumps to Russellville ).
Volume 23.
Amerika:
Grolier International,
1980.
Buku.
Gaya Turabian
Encyclopedia Americana : Volume 23 ( Pumps to Russellville ).
Amerika:
Grolier International,
1980.
Buku.