U.S. Department of Labor The Good Scents Company HazMap The Skunk's Defensive Secretion CDC - NIOSH Pocket Guide to Chemical Hazards
Truy cập ngày 11 tháng 1 năm 2012.  U.S. Department of Labor The Good Scents Company HazMap The Skunk's Defensive Secretion CDC - NIOSH Pocket Guide to Chemical Hazards