APA (7th ed.) Citation

Liszt, F., Bache, C., & La Mara. (2003). Letters of Franz Liszt -- Volume 2 from Rome to the End. Project Gutenberg.

Chicago Style (17th ed.) Citation

Liszt, Franz, Constance Bache, and La Mara. Letters of Franz Liszt -- Volume 2 from Rome to the End. Project Gutenberg, 2003.

MLA (9th ed.) Citation

Liszt, Franz, et al. Letters of Franz Liszt -- Volume 2 from Rome to the End. Project Gutenberg, 2003.

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