APA (7th ed.) Citation

Bartok, B. (1939). Zwanzig ungarische Volkslieder: Twenty Hungarian folk songs. Hawkes.

Chicago Style (17th ed.) Citation

Bartok, Bela. Zwanzig Ungarische Volkslieder: Twenty Hungarian Folk Songs. London: Hawkes, 1939.

MLA (9th ed.) Citation

Bartok, Bela. Zwanzig Ungarische Volkslieder: Twenty Hungarian Folk Songs. Hawkes, 1939.

Warning: These citations may not always be 100% accurate.