Varga, K. Experimental action research in developing countries. A.I.S.
Citazione stile Chigago Style (17a edizione)Varga, Karoly. Experimental Action Research in Developing Countries. Cartagena: A.I.S.
Citatione MLA (9a ed.)Varga, Karoly. Experimental Action Research in Developing Countries. A.I.S.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.