The Philippine islands 1493-1898 - Blair, Helen; Robertson, James Alexander, 1873 - 1939; Bourne, Edward Gaylord, 1860 - 1908 (Cleveland : A. H. Clark Co., 1903)
p. 323-325
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Keywords: Missions -- Phillipines; Demarcation line of Alexander VI; Philippines -- History -- 1521 - 1821 -- Sources; Philippines -- Discovery and exploration