APA
SPAAR working Group for Preparation strategies in Sub-Saharan Africa, . (1987). Guidelines for strengthening national agricultural research systems in Sub-Saharan Africa. Washington, D.C: World Bank.
Chicago
SPAAR working Group for Preparation strategies in Sub-Saharan Africa, . 1987. Guidelines for strengthening national agricultural research systems in Sub-Saharan Africa. Washington, D.C: World Bank.
Harvard
SPAAR working Group for Preparation strategies in Sub-Saharan Africa, . (1987). Guidelines for strengthening national agricultural research systems in Sub-Saharan Africa. Washington, D.C: World Bank.
MLA
SPAAR working Group for Preparation strategies in Sub-Saharan Africa, . Guidelines for strengthening national agricultural research systems in Sub-Saharan Africa. Washington, D.C: World Bank. 1987.