Guide for designing and presenting research protocols / URACCAN 

 - 1a ed. 
 - Nicaragua: URACCAN  2008 
<br/><br/><label>Subjects--Topical Terms: </label><br/>METODOLOGÍA DE INVESTIGACIÓN
<br/><br/><label>Dewey Class. No.: </label>001.4 Ur11 
<br/><br/><label>Universal Decimal Class. No.: </label>001.4 Ur11