Angeles, Luis. 2010. "Demographic Transitions: Analyzing the Effects of Mortality on Fertility", Journal of Population Economics 23: 99-120. DOI 10.1007/s00148-009-0255-6.

Coale, Ansley and Paul Demeny with Barbara Vaughan. 1983. Regional Model Life Tables and Stable Populations. New York: Academic Press.

Hughes, Barry B. 1980. World Modeling. Lexington, Mass: Lexington Books.

Hughes, Barry B. 2001. "Global Social Transformation: The Sweet Spot, the Steady Slog, and the Systemic Shift,” Economic Development and Cultural Change 49, No. 2 (January 2001): 423-458.

Meadows, Dennis L. et al. 1974. Dynamics of Growth in a Finite World. Cambridge, Mass: Wright-Allen Press.

Meadows, Donella H., Dennis L. Meadows, Jørgen Randers, and William W. Behrens III. 1972. The Limits to Growth. New York: Universe Books.

Mesarovic, Mihajlo D. and Eduard Pestel. 1974. Mankind at the Turning Point. New York: E.P. Dutton & Co.

Preston, Samuel H., Patrick Heuveline, and Michel Guillot. 2001. Demography: Measuring and Modeling Population Processes. Oxford: Blackwell Publishing.

United Nations, Department of Economic and Social Affairs. 1956. Methods of Population Projections by Sex and Age. New York: United Nations, ST/SOA Series A.