APA
Wilson P. M., . (1991). Simplified swahili. Harlow: Longman.
Chicago
Wilson Peter M, . 1991. Simplified swahili. Harlow: Longman.
Harvard
Wilson P. M., . (1991). Simplified swahili. Harlow: Longman.
MLA
Wilson Peter M, . Simplified swahili. Harlow: Longman. 1991.