VIELROSE, E. (1965). Elements of the natural movement of: Population. Pergamon.
Cita Chicago Style (17a ed.)VIELROSE, Egon. Elements of the Natural Movement of: Population. Oxford: Pergamon, 1965.
Cita MLA (9a ed.)VIELROSE, Egon. Elements of the Natural Movement of: Population. Pergamon, 1965.
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