Dykstra, R. R. (1961). Animal sanitation and disease control ([6th ed.].). Interstate.
Lua i Stíl Chicago (17ú heag.)Dykstra, R. R. Animal Sanitation and Disease Control. [6th ed.]. Danville, Ill: Interstate, 1961.
Lua MLA (9ú heag.)Dykstra, R. R. Animal Sanitation and Disease Control. [6th ed.]. Interstate, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.