WHO Study Group on Recommended Health-Based Occupational Exposure Limits for Selected Vegetable Dusts (Cotton Flax and Soft Hemp)(Organisation mondiale de la Santé, 1983)
WHO Study Group on Recommended Health-Based Occupational Exposure Limits for Selected Vegetable Dusts (Cotton Flax and Soft Hemp)(Organización Mundial de la Salud, 1983)
WHO Study Group on Recommended Health-Based Occupational Exposure Limits for Selected Vegetable Dusts (Cotton Flax and Soft Hemp); World Health Organization(World Health OrganizationWorld Health Organization, 1983)