APA (7th ed.) Citation

Rilke, R. M., & Leishman, J. B. (1964). Selected poems. Penguin Books.

Chicago Style (17th ed.) Citation

Rilke, Rainer Maria, and J. B. Leishman. Selected Poems. Harmondsworth [etc.]: Penguin Books, 1964.

MLA (9th ed.) Citation

Rilke, Rainer Maria, and J. B. Leishman. Selected Poems. Penguin Books, 1964.