Cita APA (7th ed.)
Hartmann, H., Unger, C. R., & D�ornemann, M. (2014). A world of populations: Transnational perspectives on demography in the twentieth century. Berghahn Books.
Cita Chicago (17th ed.)
Hartmann, Heinrich, Corinna R. Unger, i Maria D�ornemann. A World of Populations: Transnational Perspectives on Demography in the Twentieth Century. New York ; Oxford, England: Berghahn Books, 2014.
Cita MLA (9th ed.)
Hartmann, Heinrich, et al. A World of Populations: Transnational Perspectives on Demography in the Twentieth Century. Berghahn Books, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.