Osburn, D. D., & Schneeberger, K. C. (1978). Modern agriculture management. Reston Pub. Co.
Lua i Stíl Chicago (17ú heag.)Osburn, Donald D., agus Kenneth C. Schneeberger. Modern Agriculture Management. Reston, Va: Reston Pub. Co, 1978.
Lua MLA (9ú heag.)Osburn, Donald D., agus Kenneth C. Schneeberger. Modern Agriculture Management. Reston Pub. Co, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.