United Nations. Economic Commission for Europe & Food and Agriculture Organization of the United Nations. (1953). European timber statistics, 1913-1950.
Cita Chicago (17th ed.)United Nations. Economic Commission for Europe i Food and Agriculture Organization of the United Nations. European Timber Statistics, 1913-1950. Geneva, 1953.
Cita MLA (8th ed.)United Nations. Economic Commission for Europe i Food and Agriculture Organization of the United Nations. European Timber Statistics, 1913-1950. 1953.
Atenció: Aquestes cites poden no estar 100% correctes.