Hazardous waste management [videorecording] / produced by Triad Communications - [S.l.] : Triad Communication , [n.d.] - 1 videocassette (VHS) (13 min.) : sd., col. ; 1/2 in. - Safety and health awareness Systems . Subjects--Topical Terms: Hazardous wastes--ManagementHazardous wastes--Safety measuresHazardous wastes--Environmental aspects