35. Health and Safety Guide 606,398 PHOSPHORUS Phosphorus trichloride and phosphorus oxychloride : health and safety guide / IPCS International Programme on Chemical Safety, United Nations Environment Programme, International Labour Organisation, World Health Organization. - Geneva : WHO, 1989. - 32 s. ; 21 cm. - (Health and Safety Guide, ISSN 0259-7268 / no. 35) Bibliogr. s. 30-31 ISBN 92-4-154356-6