The Challenge of implementation : District health systems for primary health care / 

 - [Geneva]:  World Health Organization,  1988 
 - 72 p. ;  29 cm. 
 - WHO/SHS/DH/88.1/Rev 1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Health plan implementation<br/>Health services research<br/>Primary Health Care