APA (7th ed.) Citation

Blake, W., Parsons, J., & Yeats, W. B. (1927). Songs of innocence. Medici Society.

Chicago Style (17th ed.) Citation

Blake, William, Jacynth Parsons, and W. B. Yeats. Songs of Innocence. London ; Boston: Medici Society, 1927.

MLA (8th ed.) Citation

Blake, William, et al. Songs of Innocence. Medici Society, 1927.