Gaya APA
Schaefer, R, T.
(2007).
Sociology
(
Tenth edition)
.
:
The McGraw-Hill.New York.
Gaya MLA
Schaefer, Richard, T.
"Sociology".
Tenth edition
:
The McGraw-Hill.New York,
2007.
Skripsi, Tesis, Disertasi.