Gaya APA
Abrams, W, B., Berkow, R. (1997).
The Merck Manual Of Geriatrics Jilid : 2 (First).
Jakarta:
Binarupa aksara.
Gaya MLA
Abrams, William, B.., Berkow, Robert.
"The Merck Manual Of Geriatrics Jilid : 2".
First
Jakarta:
Binarupa aksara,
1997.
Text.