union

Sources

• NASH 1968 255

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

• LYONS 1971 157 (union of classes)

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

• GRIMES 1975 294

  GRIMES, Joseph E. (1975) The Thread of Discourse. The Hague: Mouton.

• MATTHEWS 1997 390

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