Permissible levels of occupational exposure to airborne toxic substances
By: sixth report of the Joint ILO/WHO Committee on Occupational Health.
Series: World Health Organization. Technical report series -- no. 415; Technical report series (World Health Organization) -- 415.
Publisher: World Health Organization
Published: 1969
Place of publication: Geneva
Language: eng
Number of pages: 16
Subjects: Industrial toxicology.