Improving Cash Crops in Africa: Factors Influencing the Productivity of Cotton, Coffee and Tea Grown by Smallholders. (World Bank Technical Paper No. 216.) By S. J. Carr. Washington DC: The World Bank (1993), pp. 58, £6.25, US$ 6.95. ISBN 0-8213-2509-4.
Improving Cash Crops in Africa: Factors Influencing the Productivity of Cotton, Coffee and Tea Grown by Smallholders. (World Bank Technical Paper No. 216.) By S. J. Carr. Washington DC: The World Bank (1993), pp. 58, £6.25, US$ 6.95. ISBN 0-8213-2509-4.