Ragsdale, N. N. (1999). Pesticides: Managing risks and optimizing benefits. Washington, DC: American Chemical Society.
Παραπομπή Chicago StyleRagsdale, Nancy N. Pesticides: Managing Risks and Optimizing Benefits. Washington, DC: American Chemical Society, 1999.
Παραπομπή MLARagsdale, Nancy N. Pesticides: Managing Risks and Optimizing Benefits. Washington, DC: American Chemical Society, 1999.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.