Knodt, C. B. (1954). Successful dairying. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Knodt, C. B. Successful Dairying. New York: McGraw-Hill, 1954.
Lua MLA (8ú heag.)Knodt, C. B. Successful Dairying. McGraw-Hill, 1954.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.