Selected annotated bibliography on essential drugs / 
World Health Organization. 
 - Geneva :  World Health Organization,  1990. 
 - 215 p. ;  30 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drugs, Essential.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Bibliography.