ABRAMS, W. B. (2013). The merck manual geriatrics jilid 1. Binarupa Aksara.
Cita Chicago (17th ed.)ABRAMS, William B. The Merck Manual Geriatrics Jilid 1. Binarupa Aksara, 2013.
Cita MLA (9th ed.)ABRAMS, William B. The Merck Manual Geriatrics Jilid 1. Binarupa Aksara, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.