Cowdry, E. V., & Steinberg, F. U. (1976). Cowdry's the care of the geniatric patient (5th ed.). Mosby.
Lua i Stíl Chicago (17ú heag.)Cowdry, E. V., agus Franz U. Steinberg. Cowdry's the Care of the Geniatric Patient. 5th ed. Saint Louis: Mosby, 1976.
Lua MLA (9ú heag.)Cowdry, E. V., agus Franz U. Steinberg. Cowdry's the Care of the Geniatric Patient. 5th ed. Mosby, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.