@incollection{:/content/books/9789210574334s012-c002, author = "United Nations", title = "Production of additives and other hydrocarbons", booktitle = "Energy Statistics Yearbook 2012", publisher = "United Nations", year = "2015", pages = "160-163", url = "https://www.un-ilibrary.org/content/books/9789210574334s012-c002" }