Gaya APA
Risjord, N, K.
(1985).
America Volume 1: A History of the United States
.
New Jerssey:
Prentice Hall.
Gaya MLA
Risjord, Norman, K.
"America Volume 1: A History of the United States".
New Jerssey:
Prentice Hall,
1985.
Buku Tercetak.