Gaya APA
Apter, D, E., Tindall, G, B.
(2004).
America
(
Sixth edition)
.
:
Norton.USA.
Gaya MLA
Apter, David, E., Tindall, George, Brown.
"America".
Sixth edition
:
Norton.USA,
2004.
Skripsi, Tesis, Disertasi.