APA

WHO Study Group on Recommended Health-Based Limits in Occupational Exposure to Heavy Metals (1979 : Geneva), World Health Organization, . (1980). Recommended health-based limits in occupational exposure to heavy metals : report of a WHO study group [meeting held in Geneva from 5 to 11 June 1979]. Geneva: World Health Organization.

Chicago

WHO Study Group on Recommended Health-Based Limits in Occupational Exposure to Heavy Metals (1979 : Geneva), World Health Organization, . 1980. Recommended health-based limits in occupational exposure to heavy metals : report of a WHO study group [meeting held in Geneva from 5 to 11 June 1979]. Geneva: World Health Organization.

Harvard

WHO Study Group on Recommended Health-Based Limits in Occupational Exposure to Heavy Metals (1979 : Geneva), World Health Organization, . (1980). Recommended health-based limits in occupational exposure to heavy metals : report of a WHO study group [meeting held in Geneva from 5 to 11 June 1979]. Geneva: World Health Organization.

MLA

WHO Study Group on Recommended Health-Based Limits in Occupational Exposure to Heavy Metals (1979 : Geneva), World Health Organization, . Recommended health-based limits in occupational exposure to heavy metals : report of a WHO study group [meeting held in Geneva from 5 to 11 June 1979]. Geneva: World Health Organization. 1980.