Methods and models in demography / Colin Newell. Newell, Colin. Demography. Demography Mathematical models. Demography. Models, Theoretical. HB849.4 .N49 1988 312 19 NEM Includes index. Bibliography: p. [211]-214. New York : Guilford Press, c1988. c1988. 1988 Text x, 217 p. : eng