Baum, S., Dopkowski, K., Duncan, W. G., & Gardiner, P. (1974). The World Fertility Survey inventory: Major fertility and related surveys conducted in Europe, North America and Australia 1960-1973. International Statistical Program Center. Bureau of the Census. Social and Economic Statistics Administration. Department of Commerce.
Cita Chicago Style (17a ed.)Baum, Samuel, Kathleen Dopkowski, William G. Duncan, y Peter Gardiner. The World Fertility Survey Inventory: Major Fertility and Related Surveys Conducted in Europe, North America and Australia 1960-1973. Washington, D.C.: International Statistical Program Center. Bureau of the Census. Social and Economic Statistics Administration. Department of Commerce, 1974.
Cita MLA (9a ed.)Baum, Samuel, et al. The World Fertility Survey Inventory: Major Fertility and Related Surveys Conducted in Europe, North America and Australia 1960-1973. International Statistical Program Center. Bureau of the Census. Social and Economic Statistics Administration. Department of Commerce, 1974.
