Occupational exposures of hairdressers and barbers and personal use of hair colourants ; some hair dyes, cosmetic colourants, industrial dyestuffs and aromatic amines (IARC, 1993)
"This publication represents the views and expert opinions of an IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, which met in Lyon, 6-13 October 1992"--ISSN 0250-9555