Dictionary of Literary BiographyBelow are key reference books that provide a general overview of a topic or help identify synonyms, related terms, or basic data. These sources often include references and lists of further readings.
Dictionary of the Middle Ages
Historical Dictionary of the Spanish Empire, 1402-1975
Historical Dictionary of the Spanish Civil War by 
Historical Dictionary of Spanish Cinema by 
The Oxford Companion to Spanish Literature
Diccionario de literatura española.
Dictionary of the Literature of the Iberian Peninsula
