Grzelak, A. and Czyżewski, A. 2011. Threats Agriculture In Poland In Light Of The General Economic Situation In Period Of Crisis 2007-2009. Annals of Agricultural Economics and Rural Development. 98, 3 (Oct. 2011), 21–31. DOI:https://doi.org/10.22630/RNR.2011.98.3.25.