found: Work cat.: Kreek, Cyrillus. Vaimulikud rahvaviisid = Religious folk songs, 1989:p. 7 (Kreek, with his own roots in West Estonia (born in the village of Saanika near Ridala))
found: The world factbook, via WWW, Jan. 8, 2016(Estonia. Location: Eastern Europe, bordering the Baltic Sea and Gulf of Finland, between Latvia and Russia. Nationality: noun: Estonian(s), adjective: Estonian)
found: Dickson, P. Labels for locals, 2006(Estonia (Republic of Estonia); formerly Estonian Soviet Socialist Republic: Estonian or Esthonian, which is based on a less preferred rendering of the country as Esthonia. The shortened Esth is found in crossword puzzles (four-letter word for "native of Tallinn") but it seems to have little use outside that realm.)
found: List of adjectival and demonymic forms for countries and nations, via Wikipedia, Jan. 8, 2016(Estonia: adjectival: Estonian, demonym: Estonians)
found: Wikipedia, Jan. 8, 2016(Estonians (Estonian: eestlased) are a Finnic ethnic group related to the Finns that mainly inhabit Estonia, a country located south of Finland and the Finnish Gulf)
found: Google translate, Jan. 8, 2016(English to Estonian: Estonians = eestlased)
found: OCLC, Jan. 8, 2016(titles: Eestlased Londonis : 1949-1979 = Estonians in London; Austraalia eestlased 1978 = Australian Estonians, 1978; Eestlased Austraalias ja Uus-Meremaal = Estonians in Australia and New Zealand; Eesti ja eestlased teiste rahvuste peeglis = Estonia and Estonians in the mirror of other nations)