Darling, S. T., & Smille, W. G. (1921). Studies on hookworm infection in Brazil. The Rockefeller Institute for Medical Research.
Lua i Stíl Chicago (17ú heag.)Darling, Samuel Taylor, agus Wilson George Smille. Studies on Hookworm Infection in Brazil. New York: The Rockefeller Institute for Medical Research, 1921.
Lua MLA (8ú heag.)Darling, Samuel Taylor, agus Wilson George Smille. Studies on Hookworm Infection in Brazil. The Rockefeller Institute for Medical Research, 1921.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.