Vovk, V. (2003). Sustainable Development for the Second World: Ukraine and the nations in transition.
Cita Chicago (17th ed.)Vovk, Viktor. Sustainable Development for the Second World: Ukraine and the Nations in Transition. 2003.
Cita MLA (9th ed.)Vovk, Viktor. Sustainable Development for the Second World: Ukraine and the Nations in Transition. 2003.
Atenció: Aquestes cites poden no estar 100% correctes.