powerful

Sources

• NASH 1968 187

  NASH, Rose. (1968) Multilingual Lexicon of Linguistics and Philology: English, Russian, German, French. Coral Gables, FL: University of Miami Press. 

• LYONS 1971 261

  LYONS, John. (1971) Introduction to Theoretical Linguistics. Cambridge: University Press. 

• MATTHEWS 1997 289

  MATTHEWS, P.H. (1997) The Concise Oxford Dictionary of Linguistics. Oxford: Oxford University Press.

• CRYSTAL 2003 363

  CRYSTAL, David. (2003) A Dictionary of Linguistics and Phonetics, 5th Ed Oxford: Blackwell.