Não informado. (1959). Statistical indicators of short term economic changes in ECE countries. United Nations, Economic Commission for Europe.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Statistical Indicators of Short Term Economic Changes in ECE Countries. Geneva, Suíça: United Nations, Economic Commission for Europe, 1959.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Statistical Indicators of Short Term Economic Changes in ECE Countries. United Nations, Economic Commission for Europe, 1959.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.