Callegaro,Mario <br/><br/>
Web Survey  Methodology/ 
Mario Callegaro ,Katja Lozar Manfreda ,Vasja Vehovar 
 - London:  SAGE Publications Ltd,  c2015. 
 - xx,318p.:  24cm 
<br/><br/> Includes:index (p.302-318) 
<br/><br/><label>ISBN: </label>9780857028617 
<br/><br/><label>Subjects--Topical Terms: </label><br/>computer
<br/><br/><label>Dewey Class. No.: </label>001.43  / CAL