APA (7th ed.) Citation

Graves, R., Nicholson, W., Woolf, L., & Woolf, V. The feather bed.

Chicago Style (17th ed.) Citation

Graves, Robert, William Nicholson, Leonard Woolf, and Virginia Woolf. The Feather Bed.

MLA (9th ed.) Citation

Graves, Robert, et al. The Feather Bed.