Ferguson, J. (1986). Sister on Penhallow ward. Mills & Boon.
Lua i Stíl Chicago (17ú heag.)Ferguson, Janet. Sister on Penhallow Ward. London: Mills & Boon, 1986.
Lua MLA (8ú heag.)Ferguson, Janet. Sister on Penhallow Ward. Mills & Boon, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.