Cita APA (7a ed.)

Mann, M., Dalby, D., & Baker, P. (1990). A Thesaurus of african languages: A classified and annotated inventory of the spoken languages of Africa : with an appendix on their written representation (3rd impression.). Zell.

Cita Chicago Style (17a ed.)

Mann, Michael, David Dalby, y Philip Baker. A Thesaurus of African Languages: A Classified and Annotated Inventory of the Spoken Languages of Africa : With an Appendix on Their Written Representation. 3rd impression. London [etc.]: Zell, 1990.

Cita MLA (9a ed.)

Mann, Michael, et al. A Thesaurus of African Languages: A Classified and Annotated Inventory of the Spoken Languages of Africa : With an Appendix on Their Written Representation. 3rd impression. Zell, 1990.