تصفح حسب المؤلف "Richerson, H. B"
Respiratory diseases related to vegetable and other natural dusts : a joint NIOSH/WHO study / editors, M. A. El Batawi ... [et al.] National Institute for Occupational Safety and Health; World Health Organization. Office of Occupational Health; Schilling, R. S. G; Richerson, H. B; Major, P. C; Glenn, R. E; Finklea, J. F; El Batawi, Mostafa A (1987, WHO/OCH/87.1. Unpublished)