Citazione Stile APA (7a Edizione)

Butler, S., Butler, M., & Howard, D. F. e. (1962). The correspondence of Samuel Butler with his sister May. University of California Press.

Citazione stile Chigago Style (17a edizione)

Butler, Samuel, May Butler, e Daniel Francis ed Howard. The Correspondence of Samuel Butler with His Sister May. Berkeley: University of California Press, 1962.

Citatione MLA (9a ed.)

Butler, Samuel, et al. The Correspondence of Samuel Butler with His Sister May. University of California Press, 1962.