APA

Benton P. A., Barth H. & Richardson J. (1912). Notes on some languages of the western Sudan, including 24 unpublish ed vocabularies of Barth, extracts from correspondence regarding Richar dson's and Barth's expeditions, and a few Hausa riddles and proverbs. London: Oxford University Press.

Chicago

Benton Philip Askell, Barth Heinrich and Richardson James. 1912. Notes on some languages of the western Sudan, including 24 unpublish ed vocabularies of Barth, extracts from correspondence regarding Richar dson's and Barth's expeditions, and a few Hausa riddles and proverbs. London: Oxford University Press.

Harvard

Benton P. A., Barth H. and Richardson J. (1912). Notes on some languages of the western Sudan, including 24 unpublish ed vocabularies of Barth, extracts from correspondence regarding Richar dson's and Barth's expeditions, and a few Hausa riddles and proverbs. London: Oxford University Press.

MLA

Benton Philip Askell, Barth Heinrich and Richardson James. Notes on some languages of the western Sudan, including 24 unpublish ed vocabularies of Barth, extracts from correspondence regarding Richar dson's and Barth's expeditions, and a few Hausa riddles and proverbs. London: Oxford University Press. 1912.