![]() | Guide to Health and Hygiene in Agricultural Work (ILO, 1979, 328 p.) |
Grateful acknowledgement is due to the following for permission to reproduce copyright material: World Health Organization, Geneva (figures 5 and 8); Pergamon Press Ltd., Oxford (figure 12); Dr. Howard A. Buechner (figure 18); Dr. H. Alistair Reid and The Lancet (figures 19-20); Dr. Joseph H. Shaffer and Journal of the American Medical Association (figures 21-22).