Villalobos, W., Rivera, C., & Harnmond, R. W. (1997). Occurrence of citrus viroids in Costa Rica.
Citación estilo ChicagoVillalobos, W., C. Rivera, y R W. Harnmond. Occurrence of Citrus Viroids in Costa Rica. 1997.
Deismireacht MLAVillalobos, W., C. Rivera, y R W. Harnmond. Occurrence of Citrus Viroids in Costa Rica. 1997.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.