University of the Philippines. Population Institute, Flieger, W., & Smith, P. C. (1975). A demographic path to modernity: Patterns of early-transition in the Philippines. University of the Philippines Press.

University of the Philippines. Population Institute, Wilhelm Flieger, and Peter Colin Smith. A Demographic Path to Modernity: Patterns of Early-transition in the Philippines. Quezon City: University of the Philippines Press, 1975.

University of the Philippines. Population Institute, et al. A Demographic Path to Modernity: Patterns of Early-transition in the Philippines. University of the Philippines Press, 1975.