Levine, J. R. (2014). Lex and Yacc (2nd.). O Reilly.
Lua i Stíl Chicago (17ú heag.)Levine, John R. Lex and Yacc. 2nd. Mumbai: O Reilly, 2014.
Lua MLA (9ú heag.)Levine, John R. Lex and Yacc. 2nd. O Reilly, 2014.
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