Unamuno, Miguel de 1864-1936.
The tragic sense of life in men and nations /
Miguel de Unamuno ; translated by Anthony Kerrigan ; with an introduction by Salvador de Madariaga and an afterword by William Barrett ; edited and annotated by Anthony Kerrigan, Martin Nozick 
. - Princeton : Princeton University Press,  1977 
. - xlvi, 528 p.  20 cm. 
 - Bollingen series  85:4 Selected works of Miguel de Unamuno  v. 4 .
<br/><label>  ISBN: </label>0-691-01820-0