McDougall, Walter (1993): Let the Sea Make a Noise: Four Hundred Years of Cataclysm, Conquest, War and Folly in the North Pacific.
İspanyol İmparatorluğu Padrón Real Casa da Índia Padrão Real ^ İlgili makale (İngilizce) 20 Ocak 2015 tarihinde erişilmiştir McDougall, Walter (1993): Let the Sea Make a Noise: Four Hundred Years of Cataclysm, Conquest, War and Folly in the North Pacific.