Cita APA (7a ed.)

Cowper, W., & Gilfillan, G. (1854). The poetical works of William Cowper. James Nichol [etc.].

Cita Chicago Style (17a ed.)

Cowper, William, y George Gilfillan. The Poetical Works of William Cowper. Edinburgh [etc.]: James Nichol [etc.], 1854.

Cita MLA (9a ed.)

Cowper, William, y George Gilfillan. The Poetical Works of William Cowper. James Nichol [etc.], 1854.