APA (7th ed.) Citation

Sibelius, J. Valse triste. [Op.44]. Boosey & Hawkes.

Chicago Style (17th ed.) Citation

Sibelius, Jean. Valse Triste. [Op.44]. London ; New York: Boosey & Hawkes.

MLA (9th ed.) Citation

Sibelius, Jean. Valse Triste. [Op.44]. Boosey & Hawkes.

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