APA (7th ed.) Citation

Schwebell, G. C., La Motte-Fouqué, F. H. K., & Keith, E. (1957). Undine. Simon and Schuster.

Chicago Style (17th ed.) Citation

Schwebell, Gertrude Clorius, Friedrich Heinrich Karl La Motte-Fouqué, and Eros Keith. Undine. New York, N.Y.: Simon and Schuster, 1957.

MLA (9th ed.) Citation

Schwebell, Gertrude Clorius, et al. Undine. Simon and Schuster, 1957.