APA
Backett E. M., Davies A. M. & Petros-Barvazian A. (1984). The risk approach in health care :with special reference to maternal and child health, including family planning. Geneva: World Health Organization.
Chicago
Backett E Maurice, Davies A Michael and Petros-Barvazian Angèle. 1984. The risk approach in health care :with special reference to maternal and child health, including family planning. Geneva: World Health Organization.
Harvard
Backett E. M., Davies A. M. and Petros-Barvazian A. (1984). The risk approach in health care :with special reference to maternal and child health, including family planning. Geneva: World Health Organization.
MLA
Backett E Maurice, Davies A Michael and Petros-Barvazian Angèle. The risk approach in health care :with special reference to maternal and child health, including family planning. Geneva: World Health Organization. 1984.