Liss, P. (1993). Health care need: Meaning and measurement. Avebury.
Lua i Stíl Chicago (17ú heag.)Liss, Per-Erik. Health Care Need: Meaning and Measurement. Aldershot ; Brookfield, USA: Avebury, 1993.
Lua MLA (8ú heag.)Liss, Per-Erik. Health Care Need: Meaning and Measurement. Avebury, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.