Clarke de Armando, R. (1939). Argentine english series: Book 1. Longmans, Green.
Cita Chicago (17th ed.)Clarke de Armando, R. Argentine English Series: Book 1. London - New York - Toronto: Longmans, Green, 1939.
Cita MLA (9th ed.)Clarke de Armando, R. Argentine English Series: Book 1. Longmans, Green, 1939.
Atenció: Aquestes cites poden no estar 100% correctes.