Recomendaciones de las Naciones Unidas sobre el transporte de mercancías peligrosas
VOLUMEN I
(https://www.guardianesdelasfalto.com/web/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FFBC5bvI.gif&hash=a47757b52fac78749fdd1d5630a23f828ea9b3c2) (http://www.unece.org/fileadmin/DAM/trans/danger/publi/unrec/rev21/ST-SG-AC10-1r21s_Vol1_WEB.pdf)
VOLUMEN II
(https://www.guardianesdelasfalto.com/web/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FFBC5bvI.gif&hash=a47757b52fac78749fdd1d5630a23f828ea9b3c2) (http://www.unece.org/fileadmin/DAM/trans/danger/publi/unrec/rev21/ST-SG-AC10-1r21s_Vol2_WEB.pdf)