Villanueva de Mayer, M. E. (1948). English for secondary: Second year book (1a. ed.). Tall. Gráf. Jorge Best.
Cita Chicago (17th ed.)Villanueva de Mayer, María Enriqueta. English for Secondary: Second Year Book. 1a. ed. Mendoza: Tall. Gráf. Jorge Best, 1948.
Cita MLA (9th ed.)Villanueva de Mayer, María Enriqueta. English for Secondary: Second Year Book. 1a. ed. Tall. Gráf. Jorge Best, 1948.
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