数量iv, 37 p. : ill. ; 30 cm.
言語注記Summaries in French and Spanish.
一般注記"Published under the joint sponsorship of the United Nations Environment Programme, the International Labour Organization, and the World Health Organization, and produced within the framework of the Inter-Organization Programme for the Sound Management of Chemicals."
"International Programme on Chemical Safety"--Cover.
書誌注記Includes bibliographical references (p. 25-29) .