APA (7th ed.) Citation

Doumbia, M. D. (1990). Acid soil fertility at the Cinzana station, Mali, West Africa. [publisher not identified].

Chicago Style (17th ed.) Citation

Doumbia, Mamadou Diosse. Acid Soil Fertility at the Cinzana Station, Mali, West Africa. [Place of publication not identified]: [publisher not identified], 1990.

MLA (9th ed.) Citation

Doumbia, Mamadou Diosse. Acid Soil Fertility at the Cinzana Station, Mali, West Africa. [publisher not identified], 1990.