APA (7th ed.) Citation

Clarke de Armando, R. (1939). Argentine english series: Book 1. Longmans, Green.

Chicago Style (17th ed.) Citation

Clarke de Armando, R. Argentine English Series: Book 1. London - New York - Toronto: Longmans, Green, 1939.

MLA (9th ed.) Citation

Clarke de Armando, R. Argentine English Series: Book 1. Longmans, Green, 1939.