APA
Foeken D. e., Hartog A. P. d. e., . (1990). Seasons, food supply and nutrition in Africa. Leiden, The Netherlands: African Studies Centre.
Chicago
Foeken D ed, Hartog A P den ed, . 1990. Seasons, food supply and nutrition in Africa. Leiden, The Netherlands: African Studies Centre.
Harvard
Foeken D. e., Hartog A. P. d. e., . (1990). Seasons, food supply and nutrition in Africa. Leiden, The Netherlands: African Studies Centre.
MLA
Foeken D ed, Hartog A P den ed, . Seasons, food supply and nutrition in Africa. Leiden, The Netherlands: African Studies Centre. 1990.