The spelling and hierarchical structure of the languages in the Microthesaurus Languages are based on Gordon, Raymond G., Jr. (ed.), 2005.
Keelte hierarhiline struktuur mikrotesauruses “Keeled” põhineb väljaandel Gordon, Raimond G., Jr. (ed.), 2005. Ethnologue: Languages of the World, Fifteenth edition. Dallas, Tex.: SIL International. Veebivariant aadressil http://www.ethnologue.com/