模板:SOWL
Ladefoged, Peter; Maddieson, Ian. The Sounds of the World's Languages. Oxford: Blackwell. 1996. ISBN 0-631-19814-8 (英語).
Ladefoged, Peter; Maddieson, Ian. The Sounds of the World's Languages. Oxford: Blackwell. 1996. ISBN 0-631-19814-8 (英語).