APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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