Gaya APA
Robertson, Ian. (1977).
SOCIOLOGY .
New York:
Worth Publishers.
Gaya Chicago
Robertson, Ian.
SOCIOLOGY.
New York:
Worth Publishers,
1977.
Text.
Gaya MLA
Robertson, Ian.
SOCIOLOGY.
New York:
Worth Publishers,
1977.
Text.
Gaya Turabian
Robertson, Ian.
SOCIOLOGY.
New York:
Worth Publishers,
1977.
Print.