APA Style
Babbie, Earl. (1968).
The practice of social research.-- 9th ed .
:
.
Chicago Style
Babbie, Earl.
The practice of social research.-- 9th ed.
:
,
1968.
.
MLA Style
Babbie, Earl.
The practice of social research.-- 9th ed.
:
,
1968.
.
Turabian Style
Babbie, Earl.
The practice of social research.-- 9th ed.
:
,
1968.
.