APA
Greenland D. J., Nabhan H. j. a., . (2001). Soil fertility management in support of food security in Sub-Saharan Africa. Rome: FAO.
Chicago
Greenland D J, Nabhan H jt autor, . 2001. Soil fertility management in support of food security in Sub-Saharan Africa. Rome: FAO.
Harvard
Greenland D. J., Nabhan H. j. a., . (2001). Soil fertility management in support of food security in Sub-Saharan Africa. Rome: FAO.
MLA
Greenland D J, Nabhan H jt autor, . Soil fertility management in support of food security in Sub-Saharan Africa. Rome: FAO. 2001.