World Economic Outlook : Global Manufacturing Downturn, Rising Trade Barriers. OCT 2019. Washington, D.C. : International Monetary Fund, 2019. 188 s. Dostupné na : <https://www.imf.org/en/Publications/WEO/Issues/2019/10/01/world-economic-outlook-october-2019> ISBN 978-1-51350-821-4.