Penggayaan APA
LEAVIT, Harold J.. (2005).
Panduan gerontologi .
:
.
Chicago Style
LEAVIT, Harold J..
Panduan gerontologi.
:
,
2005.
Text.
MLA Style
LEAVIT, Harold J..
Panduan gerontologi.
:
,
2005.
Text.
Turabian Style
LEAVIT, Harold J..
Panduan gerontologi.
:
,
2005.
Print.