APA (7th ed.) Citation

Cowper, W., & Nicolas, N. H. (1830). The poetical works of William Cowper. W. Pickering.

Chicago Style (17th ed.) Citation

Cowper, William, and Nicholas Harris Nicolas. The Poetical Works of William Cowper. London: W. Pickering, 1830.

MLA (9th ed.) Citation

Cowper, William, and Nicholas Harris Nicolas. The Poetical Works of William Cowper. W. Pickering, 1830.