World Health Organization The role of health centres in the development of urban health systems : report of a WHO study group on primary health care in urban areas - - Geneva W H O 1992 - 39 p. 24 cm. - WHO Technical report series no.827 . Health Planning , Health Services ISBN: 92 4 120827 9 Subjects--Topical Terms: Health ServicesHealth Planning Dewey Class. No.: SERIALS / WHO