Gaya APA
SCHAEFER, Richard T.. (2013).
Sociology in modules .
United States of America:
McGraw Hill.
Gaya Chicago
SCHAEFER, Richard T..
Sociology in modules.
United States of America:
McGraw Hill,
2013.
Text.
Gaya MLA
SCHAEFER, Richard T..
Sociology in modules.
United States of America:
McGraw Hill,
2013.
Text.
Gaya Turabian
SCHAEFER, Richard T..
Sociology in modules.
United States of America:
McGraw Hill,
2013.
Print.