Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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