APA
WHO, . (1992). The role of health centres in the development of Urban health systems. Geneva: WHO.
Chicago
WHO, . 1992. The role of health centres in the development of Urban health systems. Geneva: WHO.
Harvard
WHO, . (1992). The role of health centres in the development of Urban health systems. Geneva: WHO.
MLA
WHO, . The role of health centres in the development of Urban health systems. Geneva: WHO. 1992.