APA (7th ed.) Citation

Rilke, R. M., Washington, P., & Leishman, J. B. (1996). Poems. D. Campbell.

Chicago Style (17th ed.) Citation

Rilke, Rainer Maria, Peter Washington, and J. B. Leishman. Poems. London: D. Campbell, 1996.

MLA (9th ed.) Citation

Rilke, Rainer Maria, et al. Poems. D. Campbell, 1996.