Work study in forestry : papers produced for an international course on Work Study in forestry organised by the Forestry Commission for the joint FAO /ECE/ILO Committee on Forest Working Techniques and Training of Forest Workers, held at Wymondham College, Norfolk, and Newton Rigg College of Agriculture and Forestry, Cumberland, in July 1971 - Wiitering, W. O. (Forestry Commission bulletin, 1973)