Archive » 2009 » 2009. 03. » Keszthelyi, Szilárd: Corrections to the study by József Alvincz and Judit Petra Koltai titled “Efficiency in Organic Farming”
Corrections to the study by József Alvincz and Judit Petra Koltai titled “Efficiency in Organic Farming”
Keszthelyi, Szilárd