Armstrong, Lilias E. 1964. The Phonetic Structure of Somali. Mitteilungen des Seminars für Orientalische Sprachen Berlin 37. 116–161.
@article{armstrong1964,
author = {Armstrong, Lilias E.},
journal = {Mitteilungen des Seminars für Orientalische Sprachen Berlin},
number = {3},
pages = {116–161},
title = {The Phonetic Structure of Somali},
volume = {37},
year = {1964}
}