Fraser, R., Beral, V., & Chilvers, C. (1978). Monitoring disease in England and Wales: Methods applicable to routine data-collecting systems.
Lua i Stíl Chicago (17ú heag.)Fraser, R., V. Beral, agus C. Chilvers. Monitoring Disease in England and Wales: Methods Applicable to Routine Data-collecting Systems. 1978.
Lua MLA (9ú heag.)Fraser, R., et al. Monitoring Disease in England and Wales: Methods Applicable to Routine Data-collecting Systems. 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.