:IFEGWU, Kalu Ukpai. Assessing agricultural production systems from a sustainability perspective: some findings from agro-ecological zones of Africa. In Review of Agricultural and Applied Economics. - Nitra : Slovenská poľnohospodárska univerzita v Nitre, 2016. ISSN 1336-9261, 2016, vol. 19, no. 2, s. 3-9 online. %copiesx : #b_content#25%#15%#25%#5%Názov súboruVeľkosťTyp prístupu Plný text PDF1.1 MBverejne dostupné