Spolsky, Bernard & Richard D. Lambert. 2006. Language Planning and Policy: Models. In Brown, Keith (ed.), Encyclopedia of Language and Linguistics, 561–575. 2nd edn. Oxford: Elsevier.
@incollection{SpolskyLambert2006,
address = {Oxford},
author = {Spolsky, Bernard and Lambert, Richard D.},
booktitle = {Encyclopedia of Language and Linguistics},
edition = {2},
editor = {Brown, Keith},
pages = {561–575},
publisher = {Elsevier},
title = {Language Planning and Policy: Models},
year = {2006}
}