APA (7th ed.) Citation

Schumann, R., Davies, F., De Lara, A., & Ansermet, E. (1991). Pupils of Clara Schumann. Pearl.

Chicago Style (17th ed.) Citation

Schumann, Robert, Fanny Davies, Adelina De Lara, and Ernest Ansermet. Pupils of Clara Schumann. Wadhurst, E. Sussex, England: Pearl, 1991.

MLA (9th ed.) Citation

Schumann, Robert, et al. Pupils of Clara Schumann. Pearl, 1991.