APA (7th ed.) Citation

Cowper, W., Durell, W., & Scoles, J. The task: A poem. In six books. By William Cowper, of the Inner Temple, Esq.

Chicago Style (17th ed.) Citation

Cowper, William, William Durell, and John Scoles. The Task: A Poem. In Six Books. By William Cowper, of the Inner Temple, Esq.

MLA (9th ed.) Citation

Cowper, William, et al. The Task: A Poem. In Six Books. By William Cowper, of the Inner Temple, Esq.