Cita APA (7a ed.)

Surkyn, J., Deboosere, P., & Van Bavel, J. (2007). Demographic Challenges for the 21st Century: A State of the Art in Demography. ASP.

Cita Chicago Style (17a ed.)

Surkyn, Johan, Patrick Deboosere, y Jan Van Bavel. Demographic Challenges for the 21st Century: A State of the Art in Demography. Bruxelles: ASP, 2007.

Cita MLA (8a ed.)

Surkyn, Johan, et al. Demographic Challenges for the 21st Century: A State of the Art in Demography. ASP, 2007.