Blair, E. H. d., Robertson, J. A., & Bourne, E. G. (1907). The Philippine Islands, 1493-1898: Explorations by early navigators, descriptions of the islands and their peoples, their history and records of the Catholic missions, as related in contemporaneous books and manuscripts, showing the political, economic, commercial and religious conditions of those islands from their earliest relations with European nations to the close of the nineteenth century, Volume 52, 1841-1898. The A.H. Clark Company.

Blair, Emma Helen d.1911., James Alexander Robertson, a Edward Gaylord Bourne. The Philippine Islands, 1493-1898: Explorations by Early Navigators, Descriptions of the Islands and Their Peoples, Their History and Records of the Catholic Missions, as Related in Contemporaneous Books and Manuscripts, Showing the Political, Economic, Commercial and Religious Conditions of Those Islands from Their Earliest Relations with European Nations to the Close of the Nineteenth Century, Volume 52, 1841-1898. [Cleveland, O: The A.H. Clark Company, 1907.

Blair, Emma Helen d.1911., et al. The Philippine Islands, 1493-1898: Explorations by Early Navigators, Descriptions of the Islands and Their Peoples, Their History and Records of the Catholic Missions, as Related in Contemporaneous Books and Manuscripts, Showing the Political, Economic, Commercial and Religious Conditions of Those Islands from Their Earliest Relations with European Nations to the Close of the Nineteenth Century, Volume 52, 1841-1898. The A.H. Clark Company, 1907.