Gaya APA

Abrams, W, B., Berkow, R. (1997). The merck manual of geriatrics (jilid 1). Jakarta: Binarupa aksara.

Gaya MLA

Abrams, William, B.., Berkow, Robert. "The merck manual of geriatrics". jilid 1 Jakarta: Binarupa aksara, 1997. Text.