Gaya APA
Methods in social research. (1952).
New York:
[s.n.].
Gaya Chicago
Methods in social research.
.
New York:
[s.n.],
1952.
Text.
Gaya MLA
Methods in social research.
.
New York:
[s.n.],
1952.
Text.
Gaya Turabian
Methods in social research.
New York:
[s.n.],
1952.
Print.