APA
(1991). International centre for Research in Agroforestry. Nairobi: International Centre for Research in Agroforestry.
Chicago
1991. International centre for Research in Agroforestry. Nairobi: International Centre for Research in Agroforestry.
Harvard
(1991). International centre for Research in Agroforestry. Nairobi: International Centre for Research in Agroforestry.
MLA
International centre for Research in Agroforestry. Nairobi: International Centre for Research in Agroforestry. 1991.