Zafra, N. (1993). The colonization of the Philippines and the beginnings of the Spanish city of Manila. National Historical Institute.
芝加哥风格引文Zafra, Nicolas. The Colonization of the Philippines and the Beginnings of the Spanish City of Manila. Manila: National Historical Institute, 1993.
MLA引文Zafra, Nicolas. The Colonization of the Philippines and the Beginnings of the Spanish City of Manila. National Historical Institute, 1993.
警告：这些引文格式不一定是100％准确.