APA (7th ed.) Zitazioa
Ismail, K. M. K., Crome, I., & O'Brien, P. M. S. (2006). Psychological disorders in obstetrics and gynaecology for the MRCOG and beyond. RCOG Press.
Chicago Style (17th ed.) Zitazioa
Ismail, Khaled M. K., Ilana Crome, eta P. M. Shaughn O'Brien. Psychological Disorders in Obstetrics and Gynaecology for the MRCOG and Beyond. London: RCOG Press, 2006.
MLA (9th ed.) Zitazioa
Ismail, Khaled M. K., et al. Psychological Disorders in Obstetrics and Gynaecology for the MRCOG and Beyond. RCOG Press, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.