Cyhalothrin and lambda-cyhalothrin : health and safety guide. - Geneva : World Health Organization, 1990. - 27 p. : ill. ; 21 cm. - Health and safety guide ; no. 38 . This is a companion volume to Environmental Health Criteria 99: Cyh alothrin. Includes bibliographical references. ISBN: 9241510382 ISSN: 0259-7268 Subjects--Topical Terms: Pyrethrins-- standards National Library of Medicine Call No.: WHO WA 240 / C993 1990