Gaya APA
Sociology; a brief introduction. ([s.a.]).
New York:
[s.n.].
Gaya Chicago
Sociology; a brief introduction.
.
New York:
[s.n.],
[s.a.].
Text.
Gaya MLA
Sociology; a brief introduction.
.
New York:
[s.n.],
[s.a.].
Text.
Gaya Turabian
Sociology; a brief introduction.
New York:
[s.n.],
[s.a.].
Print.