APA (7th ed.) Citation

Vielrose, E. (1965). Elements of the natural movement of population. Pergamon Press.

Chicago Style (17th ed.) Citation

Vielrose, Egon. Elements of the Natural Movement of Population. Oxford: Pergamon Press, 1965.

MLA (9th ed.) Citation

Vielrose, Egon. Elements of the Natural Movement of Population. Pergamon Press, 1965.