[Results evaluation fo six years fo extension in the potato cultivation, executed by the Potato Seed Project (POSEPRO), in the North and South Cinti de Chuquisaca Provice, Bolivia] | Evaluaci=n de resultados de seis a+/-os de extensi=n en el cultivo de papa, ejecutado por el Proyecto de Semilla de Papa (PROSEMPA), en las provincias Nor y Sur Cinti de Chuquisaca, Bolivia

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