Gaya APA

etc., D, R, G, M, J, D. (2008). Ebook Obstetric Anesthesia and Uncommon Disorders, Second Edition (ED. 2). Inggris: Cambridge University Press.

Gaya MLA

etc., David, R., Gambling,, M., Joanne, Douglas. "Ebook Obstetric Anesthesia and Uncommon Disorders, Second Edition". ED. 2 Inggris: Cambridge University Press, 2008. Text.