Cita APA (7a ed.)

Villanueva de Mayer, M. E. (1948). English for secondary: Second year book (1a. ed.). Tall. Gráf. Jorge Best.

Cita Chicago Style (17a ed.)

Villanueva de Mayer, María Enriqueta. English for Secondary: Second Year Book. 1a. ed. Mendoza: Tall. Gráf. Jorge Best, 1948.

Cita MLA (9a ed.)

Villanueva de Mayer, María Enriqueta. English for Secondary: Second Year Book. 1a. ed. Tall. Gráf. Jorge Best, 1948.