APA (7th ed.) Citation

Frey, S. (2014). "Laughter under tears": Emmerich Kálmán ; an operetta biography. Operetta Foundation.

Chicago Style (17th ed.) Citation

Frey, Stefan. "Laughter Under Tears": Emmerich Kálmán ; an Operetta Biography. Culver City, CA: Operetta Foundation, 2014.

MLA (9th ed.) Citation

Frey, Stefan. "Laughter Under Tears": Emmerich Kálmán ; an Operetta Biography. Operetta Foundation, 2014.

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