Pelikan, Jiri,.
Socialist opposition in Eastern Europe : the Czechoslovak example /
translated by Marian Sling and V. and R. Tosek 
. - London  : Allison & Busby,  1976 
. - 222 p.  22 cm. 
 - ((Motive) )
<br/><label>  ISBN: </label>0-85031-183-7