APA Style

Sweet, B, R. (1997). Mayes Midwifery :A Textbook for Midwives (Ed. 12). London: Bailliere Tindall.

MLA Style

Sweet, Betty, R.. "Mayes Midwifery :A Textbook for Midwives". Ed. 12 London: Bailliere Tindall, 1997. .