APA (7th ed.) Citation

Bartók, B., & Demény, J. (1971). Bela Bartok letters. St. Martin's Press.

Chicago Style (17th ed.) Citation

Bartók, Béla, and János Demény. Bela Bartok Letters. New York: St. Martin's Press, 1971.

MLA (9th ed.) Citation

Bartók, Béla, and János Demény. Bela Bartok Letters. St. Martin's Press, 1971.