Kielhorn, J.

Coal tar creosote / by: Melber, C.; Mangelsdorf, I.; United Nations Environment Programme.; Kielhorn, J.; World Health Organization.; International Program on Chemical Safety.; Inter-Organization Programme for the Sound Management of Chemicals.; International Labour Organisation. (Language materials, printed)

Heptachlor / by: Kielhorn, J.; World Health Organization.; Inter-Organization Programme for the Sound Management of Chemicals.; International Labour Organisation.; United Nations Environment Programme. (Language materials, printed)

Selected Nitro- and Nitro-oxy-polycyclic aromatic hydrocarbons / by: Kielhorn, J.; Inter-Organization Programme for the Sound Management of Chemicals.; International Labour Organisation.; World Health Organization.; International Program on Chemical Safety.; Mangelsdorf, I.; United Nations Environment Programme. (Language materials, printed)

Glyoxal / by: United Nations Environment Programme.; International Program on Chemical Safety.; World Health Organization.; Inter-Organization Programme for the Sound Management of Chemicals.; International Labour Organisation.; Kielhorn, J. (Language materials, printed)

1,2,3-Trichloropropane / by: United Nations Environment Programme.; International Labour Organisation.; Inter-Organization Programme for the Sound Management of Chemicals.; World Health Organization.; International Program on Chemical Safety.; Kielhorn, J. (Language materials, printed)

Dermal absorption / by: Inter-Organization Programme for the Sound Management of Chemicals.; International Labour Organisation.; International Program on Chemical Safety.; World Health Organization.; Kielhorn, J.; United Nations Environment Programme. (Language materials, printed)