Davies, B. M. (1983). Community Health Preventive Medicine and Social Services.
Lua i Stíl Chicago (17ú heag.)Davies, Brian Meredith. Community Health Preventive Medicine and Social Services. 1983.
Lua MLA (9ú heag.)Davies, Brian Meredith. Community Health Preventive Medicine and Social Services. 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.