Butler, S., & Gilfillan, G. (1854). The poetical works of Samuel Butler. James Nichol [etc.].
Chicago Style (17th ed.) CitationButler, Samuel, and George Gilfillan. The Poetical Works of Samuel Butler. Edinburgh [etc.]: James Nichol [etc.], 1854.
MLA (9th ed.) CitationButler, Samuel, and George Gilfillan. The Poetical Works of Samuel Butler. James Nichol [etc.], 1854.
Warning: These citations may not always be 100% accurate.