APA Citation

(2003). The GLOBALLY harmonized system of classification and labelling of chemicals: The purple book volume 1 & II. New York: United Nation.

Chicago Style Citation

The GLOBALLY Harmonized System of Classification and Labelling of Chemicals: The Purple Book Volume 1 & II. New York: United Nation, 2003.

MLA Citation

The GLOBALLY Harmonized System of Classification and Labelling of Chemicals: The Purple Book Volume 1 & II. New York: United Nation, 2003.

Warning: These citations may not always be 100% accurate.