Phosphorus trichloride and phosporus oxychloride : health and saf ety guide. - Geneva : World Health Organization, 1989. - 31 p. : ill. ; 21 cm. - Health and safety guide ; no. 35 . Includes bibliographical references. ISBN: 9241543566 ISSN: 0259-7268 Subjects--Topical Terms: Phosphorus-- standards National Library of Medicine Call No.: WHO QV 618 / 1989