title: The role of models in planning.
authors.forename: R M
authors.initials: RM
authors.lastname: Sundrum
mesh_terms: D003710:Demography; D004467:Economics; D005193:Family Planning Services; D011153:Population; D011157:Population Dynamics; D011158:Population Growth; D011640:Public Policy; D012942:Social Sciences; D012959:Socioeconomic Factors