Williams, J. F. (1927). Hygiene and sanitation: The essentials of modern health care. W.B. Saunders Company.
Lua i Stíl Chicago (17ú heag.)Williams, Jesse Feiring. Hygiene and Sanitation: The Essentials of Modern Health Care. Philadelphia ; London: W.B. Saunders Company, 1927.
Lua MLA (8ú heag.)Williams, Jesse Feiring. Hygiene and Sanitation: The Essentials of Modern Health Care. W.B. Saunders Company, 1927.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.