Karpiński, Jakub.
Countdown: the Polish upheavals of 1956, 1968, 1970, 1976, 1980  /
Jakub Karpiński ; translated by Olga Amsterdamska and Gene M. Moore 
. - New York : Karz-Cohl Publishers, Inc,  1982 
. - vi, 214 p.  21 cm. 
<br/><label>  ISBN: </label>0-918294-15-0