Venkatesan, V., Kampen, J. Evolution of Agricultural Services in Sub-Saharan Africa. Washington: The World Bank, 1998 XI, 117 с, 0-8213-4259-2.
Venkatesan, V., Kampen, J. Evolution of Agricultural Services in Sub-Saharan Africa. Washington: The World Bank, 1998 XI, 117 с, 0-8213-4259-2.
Venkatesan, V., Kampen, J. (1998) Evolution of Agricultural Services in Sub-Saharan Africa, Washington: The World Bank XI, 117 с, 0-8213-4259-2.
Venkatesan, V., & Kampen, J. (1998). Evolution of Agricultural Services in Sub-Saharan Africa. Trends and Prospects. Washington: The World Bank, XI, 117 с.
Venkatesan V, Kampen J. Evolution of Agricultural Services in Sub-Saharan Africa: Trends and Prospects. Washington: The World Bank; 1998. p. XI, 117 с. ISBN: 0-8213-4259-2.