Watt, D. A. (1987). ADA: Language and methodology. Prentice-Hall.
Chicago Style aipamenaWatt, David A. ADA: Language and Methodology. Englewood Cliffs, N. J: Prentice-Hall, 1987.
MLA aipamenaWatt, David A. ADA: Language and Methodology. Prentice-Hall, 1987.
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