Lilienfeld, A. M. (1967). Cancer epidemiology methods of study.
Lua i Stíl Chicago (17ú heag.)Lilienfeld, Abraham M. Cancer Epidemiology Methods of Study. 1967.
Lua MLA (9ú heag.)Lilienfeld, Abraham M. Cancer Epidemiology Methods of Study. 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.