boundary₁

Sources

• NASH 1968 24, 126 (limit)

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

• COLLINGE 1990 937 (= limit)

  COLLINGE, N. E. (1990) An Encyclopaedia of Language. London: Routledge.

• SAUSSURE 1959[trans.] 203-204

  SAUSSURE, Ferdinand de. (1959 [trans.]) Course in General Linguistics. Trans. by Wade Baskin. New York: Philosophical Library.