Calderón, R. A., & Sánchez, L. A. (2011). Diagnosis of bee diseases in africanized honey bees in Costa Rica: Prevalence and distribution from September to November 2007.
Dyfyniad Arddull ChicagoCalderón, Rafael A., y Luis A. Sánchez. Diagnosis of Bee Diseases in Africanized Honey Bees in Costa Rica: Prevalence and Distribution From September to November 2007. 2011.
Dyfyniad MLACalderón, Rafael A., y Luis A. Sánchez. Diagnosis of Bee Diseases in Africanized Honey Bees in Costa Rica: Prevalence and Distribution From September to November 2007. 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.