@book{katzner_languages_2002,
	Address = {London},
	Author = {Katzner, K},
	Date = {2002},
	Date-Modified = {2017-04-04 10:09:54 +0000},
	Edition = {3},
	Keywords = {language families, linguistics},
	Publisher = {Routledge and Kegan Paul},
	Title = {The languages of the World}}