Cita APA (7a ed.)

Greenberg, J. H., & Berry, J. (1971). Linguistics in Sub-Saharan Africa. Mouton.

Cita Chicago Style (17a ed.)

Greenberg, Joseph H., y Jack Berry. Linguistics in Sub-Saharan Africa. The Hague [etc.]: Mouton, 1971.

Cita MLA (9a ed.)

Greenberg, Joseph H., y Jack Berry. Linguistics in Sub-Saharan Africa. Mouton, 1971.