*{{Harvard reference|Title=The illustrated history of art|Last=Piper|Given=David |url=|Year=2004|Publisher=Bounty Books|Place=[[Londres]]|chapter=|language=anglés|volume=|ID=0-7537-0908-2}}
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* {{Harvard reference|Title=The illustrated history of art|Last=Piper|Given=David |url=|Year=2004|Publisher=Bounty Books|Place=[[Londres]]|chapter=|language=anglés|volume=|ID=0-7537-0908-2}}
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*{{Harvard reference|Title=The Harper History of Painting: The Occidental Tradition|Last=Robb|Given=David|url=|Year=1951|Publisher=Harper & Brothers|Place=[[Nova York]]|chapter=|language=anglés|volume=|ID=517655}}
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* {{Harvard reference|Title=The Harper History of Painting: The Occidental Tradition|Last=Robb|Given=David|url=|Year=1951|Publisher=Harper & Brothers|Place=[[Nova York]]|chapter=|language=anglés|volume=|ID=517655}}