English
polite form
Source(s):HARTMANN & STORK 1972179
NASH 1968184
MATTHEWS 1997285
- HARTMANN, R.R.K. & STORK, F.C. (1972) Dictionary of Language and Linguistics. London: Applied Science Publishers.
- NASH, Rose. (1968) Multilingual Lexicon of Linguistics and Philology: English, Russian, German, French. Coral Gables, FL: University of Miami Press.
- MATTHEWS, P.H. (1997) The Concise Oxford Dictionary of Linguistics. Oxford: Oxford University Press.