English
sampling
French
nS
Source(s):FRANCIS 198350
RICHARDS etal. 1992321
CROFT 199019
- FRANCIS, W.N. (1983) Dialectology: An Introduction. London: Longman.
- RICHARDS, Jack, PLATT, J. & WEBER, H. (1992) Longman Dictionary of Language Teaching & Applied Linguistics. London: Longman.
- CROFT, William. (1990) Typology and Universals. Cambridge : Cambridge University Press.