Gaya APA
SCHAEFER, Richard T. (2011).
Sociology a brief introduction (ed.9).
New York:
Mc Graw Hill.
Gaya Chicago
SCHAEFER, Richard T.
Sociology a brief introduction.
ed.9
New York:
Mc Graw Hill,
2011.
Text.
Gaya MLA
SCHAEFER, Richard T.
Sociology a brief introduction.
ed.9
New York:
Mc Graw Hill,
2011.
Text.
Gaya Turabian
SCHAEFER, Richard T.
Sociology a brief introduction.
ed.9
New York:
Mc Graw Hill,
2011.
Print.