APA (7th ed.) Citation

(1989). The Niger-Congo languages: A classification and description of Africa's largest language family. Univ. Press of America.

Chicago Style (17th ed.) Citation

The Niger-Congo Languages: A Classification and Description of Africa's Largest Language Family. Lanham u.a: Univ. Press of America, 1989.

MLA (9th ed.) Citation

The Niger-Congo Languages: A Classification and Description of Africa's Largest Language Family. Univ. Press of America, 1989.