Eddowes, M. (1969). Crop technology. Hutchinson Educational.
Lua i Stíl Chicago (17ú heag.)Eddowes, Maurice. Crop Technology. [London]: Hutchinson Educational, 1969.
Lua MLA (8ú heag.)Eddowes, Maurice. Crop Technology. Hutchinson Educational, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.