Gaya APA
Research Methods in Social Work. (1991).
Chicago:
[s.n.].
Gaya Chicago
Research Methods in Social Work.
Cet. 1.
Chicago:
[s.n.],
1991.
Text.
Gaya MLA
Research Methods in Social Work.
Cet. 1.
Chicago:
[s.n.],
1991.
Text.
Gaya Turabian
Research Methods in Social Work.
Chicago:
[s.n.],
1991.
Print.