@incollection{:/content/books/9789287042422s001-c011, author = "World Trade Organization", title = "Economies by size of trade in commercial services in 2013", booktitle = "International Trade Statistics 2014", publisher = "WTO", year = "2014", pages = "9-9", url = "https://www.wto-ilibrary.org/content/books/9789287042422s001-c011" }