Cross-national comparative research :  theory and practice  / 
e dited by Alexander Szalai and Riccardo Petrella, in collaboration with Stein Rokkan and Erwin K. Scheuch 
 - London  :  Pergamon ,  1977 
 - xvii, 498 p. :  ill. ;  22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research<br/>Social Surveys.
<br/><br/><label>Dewey Class. No.: </label>300.72 ROU