Valdo, Pons <br/><br/>
Introduction to social research 

 - Dar es Salaam:  Dar es Salaam University Press,  1992 
 - xxx,617p.:  ill.;  21cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences<br/>Research
<br/><br/><label>LC Class. No.: </label>EAF HN29.I627