@incollection{:/content/books/9789210576574s003-c001, author = "United Nations", title = "Index of commodities in alphabetical order", booktitle = "Industrial Commodity Statistics Yearbook 2013", publisher = "United Nations", year = "2015", pages = "607-623", url = "https://www.un-ilibrary.org/content/books/9789210576574s003-c001" }