Gaya APA

Wachtel, T, J., Fretwell, M, D. (2007). Practical Guide to the Care of the Geriatric Patient (Ed.3rd). USA: Mosby Elsevier.

Gaya MLA

Wachtel, Tom, J.., Fretwell, Marsha, D.. "Practical Guide to the Care of the Geriatric Patient". Ed.3rd USA: Mosby Elsevier, 2007. Text.