APA (7th ed.) Citation

Imbert, C., & Blum, K. (1963). Eintritt frei: Oper. Ed. Rencontre.

Chicago Style (17th ed.) Citation

Imbert, Charles, and Kurt Blum. Eintritt Frei: Oper. Lausanne: Ed. Rencontre, 1963.

MLA (9th ed.) Citation

Imbert, Charles, and Kurt Blum. Eintritt Frei: Oper. Ed. Rencontre, 1963.

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