Gaya APA
Encyclopedia Americana : B to Birling. (2001).
United State America:
Grolier.
Gaya Chicago
Encyclopedia Americana : B to Birling.
Vol. 3.
United State America:
Grolier,
2001.
Text.
Gaya MLA
Encyclopedia Americana : B to Birling.
Vol. 3.
United State America:
Grolier,
2001.
Text.
Gaya Turabian
Encyclopedia Americana : B to Birling.
United State America:
Grolier,
2001.
Print.