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"Aguardiente". Diccionario de la Lengua Española (in Spanish) (Vigésima Segunda Edición ed.). Archived from the original on 5 July 2015. Retrieved 3 July 2015.
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Jiménez, Beatriz (6 February 2011). "La Fiesta del Pisco Sour". El Mundo (in Spanish). Spain. Archived from the original on 3 July 2015. Retrieved 2 July 2015.