Ladefoged, Peter
Vowels and consonants: an introduction to the sound of language
Blackwell publisher, 2001
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Zsiga, Elizabeth C.
The sounds of language : an introduction to phonetics and phonology
West Sussex Wiley-Blackwell, 2013
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Meehan, Diane
An introduction to fourth generation languages
Stanley Thornes , 1990
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Meyer, Bertrand, 1950-
Introduction to the theory of programming languages
Prentice-Hall, 1990
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Martin, John C.
Introduction to languages and the theory of computation
McGraw-HIll, 1991
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