MUST WE FIGTH?
Must we fight? : from the battlefield to the schoolyard, a new perspective on violent conflict and its prevention / William L. Ury, [ed.lit.] . - San Francisco : Jossey-Bass, 2002 . - 122p.; 21cm . - ISBN: 0787961035
RESOLUÇÃO ALTERNATIVA DE LITÍGIOS / PREVENÇÃO / PREVENÇÃO DE CONFLITOS / RAM_MUS