APA
International Centre for Research in Agroforestry, . (1991). International centres day, 19 November 1999, Nairobi, Kenya. Nairobi: The Centre.
Chicago
International Centre for Research in Agroforestry, . 1991. International centres day, 19 November 1999, Nairobi, Kenya. Nairobi: The Centre.
Harvard
International Centre for Research in Agroforestry, . (1991). International centres day, 19 November 1999, Nairobi, Kenya. Nairobi: The Centre.
MLA
International Centre for Research in Agroforestry, . International centres day, 19 November 1999, Nairobi, Kenya. Nairobi: The Centre. 1991.