Cita APA (7th ed.)

Schumann, C., Schumann, R., Weissweiler, E., Fritsch, H., & Crawford, R. L. (1996). The complete correspondence of Clara and Robert Schumann (Critical ed.). Peter Lang.

Cita Chicago (17th ed.)

Schumann, Clara, Robert Schumann, Eva Weissweiler, Hildegard Fritsch, i Ronald L. Crawford. The Complete Correspondence of Clara and Robert Schumann. Critical ed. New York: Peter Lang, 1996.

Cita MLA (9th ed.)

Schumann, Clara, et al. The Complete Correspondence of Clara and Robert Schumann. Critical ed. Peter Lang, 1996.