Esquerra
No pasarán! : they shall not pass : a story of the Battle of Madrid.
Paraules claus
Dreta

SINCLAIR, Upton. No pasarán! : they shall not pass : a story of the Battle of Madrid. Pasadena (California) : The author, 1937. 96 p.

http://sidbrint.ub.edu/ca/node/12668