Gaya APA
Babbie, Earl. (1998).
The practice of social research (8).
Thousand Oaks, California:
Wadsworth Publishing.
Gaya Chicago
Babbie, Earl.
The practice of social research.
8
Thousand Oaks, California:
Wadsworth Publishing,
1998.
Text.
Gaya MLA
Babbie, Earl.
The practice of social research.
8
Thousand Oaks, California:
Wadsworth Publishing,
1998.
Text.
Gaya Turabian
Babbie, Earl.
The practice of social research.
8
Thousand Oaks, California:
Wadsworth Publishing,
1998.
Print.