@article{244323, url = {http://digitallibrary.un.org/record/244323}, title = {Test particle size for solids of division 4.2 : implementation of Agenda 21 : classification of reactive substances /}, publisher = {UN,}, recid = {244323}, pages = {3 p. :}, address = {Geneva :. 1997-09-29}, year = {1997}, month = {Sep}, }