@incollection{:/content/books/9789287042439s001-c013, author = "World Trade Organization", title = "Abbreviations and symbols", booktitle = "International Trade Statistics 2013", publisher = "WTO", year = "2013", pages = "10-10", url = "https://www.wto-ilibrary.org/content/books/9789287042439s001-c013" }