APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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