Gaya APA
Bayer, P, [, A.
(2001).
Encyclopedia Americana
(
Keduapuluhdua)
.
Connecticut:
Grolier Incorporated.
Gaya MLA
Bayer, Patricia, [et, Al.].
"Encyclopedia Americana".
Keduapuluhdua
Connecticut:
Grolier Incorporated,
2001.
Book.