Acreage response to government stabilization programs in Ontario / Mike von Massow, Alfons Weersink. -- Guelph : University of Guelph, 1992. -- 26 s. : 3 tab. -- (Working Papers Series 92/1. Department of Agric. econ. and business). poľnohospodárstvo Ontária * stabilizácia štátna * politika poľnohospodárska