APA
WHO Study Group on Recommended Health-Based Limits in Occupational Exposure to Selected Mineral Dusts (Silica Coal) (1984 : Geneva), World Health Organization, . (1986). Recommended health-based limits in occupational exposure to selected mineral dusts (silica, coal : report of a WHO study group [meeting held in Geneva from 6 to 12 March 1984]. Geneva: World Health Organization.
Chicago
WHO Study Group on Recommended Health-Based Limits in Occupational Exposure to Selected Mineral Dusts (Silica Coal) (1984 : Geneva), World Health Organization, . 1986. Recommended health-based limits in occupational exposure to selected mineral dusts (silica, coal : report of a WHO study group [meeting held in Geneva from 6 to 12 March 1984]. Geneva: World Health Organization.
Harvard
WHO Study Group on Recommended Health-Based Limits in Occupational Exposure to Selected Mineral Dusts (Silica Coal) (1984 : Geneva), World Health Organization, . (1986). Recommended health-based limits in occupational exposure to selected mineral dusts (silica, coal : report of a WHO study group [meeting held in Geneva from 6 to 12 March 1984]. Geneva: World Health Organization.
MLA
WHO Study Group on Recommended Health-Based Limits in Occupational Exposure to Selected Mineral Dusts (Silica Coal) (1984 : Geneva), World Health Organization, . Recommended health-based limits in occupational exposure to selected mineral dusts (silica, coal : report of a WHO study group [meeting held in Geneva from 6 to 12 March 1984]. Geneva: World Health Organization. 1986.