Abell, D. F. (1992). Turnaround in Eastern Europe in-depth studies. United Nations Development Programme : Management Development Programme.
Citazione stile Chigago Style (17a edizione)Abell, Derek F.. Turnaround in Eastern Europe In-depth Studies. New York: United Nations Development Programme : Management Development Programme, 1992.
Citatione MLA (9a ed.)Abell, Derek F.. Turnaround in Eastern Europe In-depth Studies. United Nations Development Programme : Management Development Programme, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.