Etudes pour le piano, op. 18Tanulmány, piano, op. 18

Chicago citation style
Bartók, Béla, 1881-1945. Etudes pour le piano, op. 18,Tanulmány, piano, op. 18. c1920. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007943890. (Accessed December 11, 2018.)
APA citation style
Bartók, Béla, 1881-1945, (c1920) Etudes pour le piano, op. 18,Tanulmány, piano, op. 18. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007943890
MLA citation style
Bartók, Béla, 1881-1945. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/007943890>.
Note: These citations are programmatically generated and may be incomplete.