APA (7th ed.) Citation

Eisler, E. 21st century string quartets. String Letter Publ.

Chicago Style (17th ed.) Citation

Eisler, Edith. 21st Century String Quartets. San Anselmo, Calif: String Letter Publ.

MLA (9th ed.) Citation

Eisler, Edith. 21st Century String Quartets. String Letter Publ.

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