Cita APA (7th ed.)

Echu, G., & Obeng, S. G. (2004). Africa meets Europe: Language contact in West Africa. Nova Science Publ..

Cita Chicago (17th ed.)

Echu, George, i Samuel Gyasi Obeng. Africa Meets Europe: Language Contact in West Africa. New York: Nova Science Publ., 2004.

Cita MLA (8th ed.)

Echu, George, i Samuel Gyasi Obeng. Africa Meets Europe: Language Contact in West Africa. Nova Science Publ., 2004.