@incollection{:/content/books/9789210581882s008-c006, author = "United Nations Department of Economic and Social Affairs", title = "Marriages", booktitle = "United Nations Demographic Yearbook 1959", publisher = "United Nations", year = "1960", pages = "606-629", url = "https://www.un-ilibrary.org/content/books/9789210581882s008-c006" }