Roberts, John R. 1987. Amele. (Croom Helm Descriptive Grammars.) London: Croom Helm.
@book{nicholsdiversity-Roberts1987, address = {London}, author = {Roberts, John R.}, publisher = {Croom Helm}, series = {Croom Helm Descriptive Grammars}, title = {Amele}, year = {1987} }