Butler, S., Butler, M., & Howard, D. F. e. (1962). The correspondence of Samuel Butler with his sister May. University of California Press.
Chicago Style (17th ed.) CitationButler, Samuel, May Butler, and Daniel Francis ed Howard. The Correspondence of Samuel Butler with His Sister May. Berkeley: University of California Press, 1962.
MLA (9th ed.) CitationButler, Samuel, et al. The Correspondence of Samuel Butler with His Sister May. University of California Press, 1962.
Warning: These citations may not always be 100% accurate.