Pickering, D. (1988). African agricultural research and technological development: Proceedings of a high-level meeting in Feldafing, Federal Republic of Germany, Septermber 24-27, 1987. World Bank.
Citazione stile Chigago Style (17a edizione)Pickering, Donald. African Agricultural Research and Technological Development: Proceedings of a High-level Meeting in Feldafing, Federal Republic of Germany, Septermber 24-27, 1987. Washington: World Bank, 1988.
Citatione MLA (9a ed.)Pickering, Donald. African Agricultural Research and Technological Development: Proceedings of a High-level Meeting in Feldafing, Federal Republic of Germany, Septermber 24-27, 1987. World Bank, 1988.
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