Cita APA (7a ed.)

Clarke de Armando, R. (1965). English for Commercial Schools (7a.ed.). Estrada.

Cita Chicago Style (17a ed.)

Clarke de Armando, Rosa. English for Commercial Schools. 7a.ed. Buenos Aires: Estrada, 1965.

Cita MLA (9a ed.)

Clarke de Armando, Rosa. English for Commercial Schools. 7a.ed. Estrada, 1965.