Flieger, W., Koppin, B., & Lim, C. (1976). Geographical patterns of internal migration in the Philippines: 1960-1970. National Census and Statistics Office.
芝加哥风格引文Flieger, Wilhelm, Brigida Koppin, 与 Carmencita Lim. Geographical Patterns of Internal Migration in the Philippines: 1960-1970. Manila: National Census and Statistics Office, 1976.
MLA引文Flieger, Wilhelm, et al. Geographical Patterns of Internal Migration in the Philippines: 1960-1970. National Census and Statistics Office, 1976.
警告：这些引文格式不一定是100％准确.