Alpha- and beta- hexachlorocyclohexanes / first draft prepared by G. J. van Esch - Geneva : World Health Organization, 1991 - 170 p. : ill. ; 21 cm. - Environmental health criteria v. 123 0250-863X . ISBN: 9241571233 Subjects--Topical Terms: Benzene hexachloride--Adverse effectsBenzene hexachloride--Toxicity