APA (7th ed.) Citation

Lessing, G. E., Bell, E., & Zimmern, H. (1914). The dramatic works of G. E. Lessing. G. Bell.

Chicago Style (17th ed.) Citation

Lessing, Gotthold Ephraim, Ernest Bell, and Helen Zimmern. The Dramatic Works of G. E. Lessing. London: G. Bell, 1914.

MLA (9th ed.) Citation

Lessing, Gotthold Ephraim, et al. The Dramatic Works of G. E. Lessing. G. Bell, 1914.