Roberts, D. A. (1978). Fundamentals of plant-pest control. W.H. Freeman and Company.
Lua i Stíl Chicago (17ú heag.)Roberts, Daniel Altman. Fundamentals of Plant-pest Control. San Francisco: W.H. Freeman and Company, 1978.
Lua MLA (9ú heag.)Roberts, Daniel Altman. Fundamentals of Plant-pest Control. W.H. Freeman and Company, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.