Seneviratne, Rohini de Alwis.,
OCCUPATIONAL helalth: a hand book for doctors / edited by Rohini de Alwis Seneviratne...[et al.] - Colombo Department of community medicine 1998 - xiv, 151 p.
9559021133
Occupational health
613.62 / OCC
OCCUPATIONAL helalth: a hand book for doctors / edited by Rohini de Alwis Seneviratne...[et al.] - Colombo Department of community medicine 1998 - xiv, 151 p.
9559021133
Occupational health
613.62 / OCC