APA (7th ed.) Citation

Watta, O. (1989). In-sign-e. Three Continents Press.

Chicago Style (17th ed.) Citation

Watta, Oumarou. In-sign-e. Washington, D.C.: Three Continents Press, 1989.

MLA (9th ed.) Citation

Watta, Oumarou. In-sign-e. Three Continents Press, 1989.