APA aipamena

Un. (2013). Globally harmonited system of classification and labelling of chemicals. United Nations.

Chicago Style aipamena

Un. Globally Harmonited System of Classification and Labelling of Chemicals. New York: United Nations, 2013.

MLA aipamena

Un. Globally Harmonited System of Classification and Labelling of Chemicals. United Nations, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.