Pichl, Walter J. 1973. Sherbro. In Kropp-Dakubu, M. E. (ed.), West African Langauge Data Sheets, 223–229. West African Linguistics Society.
@incollection{1321_bun,
author = {Pichl, Walter J.},
booktitle = {West African Langauge Data Sheets},
editor = {Kropp-Dakubu, M. E.},
pages = {223–229},
publisher = {West African Linguistics Society},
title = {Sherbro},
volume = {2},
year = {1973}
}