Penggayaan APA
BABBLE, Earl R.. (1975).
The practice of social research .
California:
Wadsworth.
Chicago Style
BABBLE, Earl R..
The practice of social research.
California:
Wadsworth,
1975.
Buku.
MLA Style
BABBLE, Earl R..
The practice of social research.
California:
Wadsworth,
1975.
Buku.
Turabian Style
BABBLE, Earl R..
The practice of social research.
California:
Wadsworth,
1975.
Buku.