Hi 2010 BEBES,
I know it is difficult for you to get books from your library, but you could try a google search for any book title + PDF to find lots of good stuff.
Here is one link I found for NVC...
http://www.ayahuasca-wasi.com/english/articles/NVC.pdf - over 80 pages of extracts from NVC writings
But after reading the book it seems very targeted toward nuances of English. So I might suggest the Spanish version for you...
Comunicación No Violenta: un Lenguaje de Vida (full book)
Como Criar A Nuestros Hijos De Manera Compasiva (booklet)