Gaya APA
Introduction to sosial research. (1970).
New Mexico:
[s.n.].
Gaya Chicago
Introduction to sosial research.
Ed. 2.
New Mexico:
[s.n.],
1970.
Text.
Gaya MLA
Introduction to sosial research.
Ed. 2.
New Mexico:
[s.n.],
1970.
Text.
Gaya Turabian
Introduction to sosial research.
New Mexico:
[s.n.],
1970.
Print.