Gaya APA
McKhann, G., Albert, M.
(2010).
Keep Your Brain Young : Agar Otak Awet Muda
.
Yogyakarta:
MedPress.
Gaya MLA
McKhann, Guy., Albert, Marilyn.
"Keep Your Brain Young : Agar Otak Awet Muda".
Yogyakarta:
MedPress,
2010.
Text.